Agpedia
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-***Copaifera langsdorffii*** Desf. (Portuguese: ***copaíba***; also commonly called the **diesel tree** or **copaiba**) is a [leguminous](leguminosae) tree in the family [Fabaceae](fabaceae), native to a wide range of Neotropical environments from Guyana to Argentina.[@powo2026copaifera:native-range] The species is one of the most widespread and ecologically important trees of the Brazilian [Cerrado](cerrado) and adjacent biomes. Its trunk yields a liquid oleoresin — known as copaiba oil or *óleo de copaíba* — that has been used in traditional medicine across the Amazon and Central Brazil for centuries, and has attracted scientific interest for its antimicrobial, anti-inflammatory, and potential anticancer properties.[@joyce2011diesel:composition] The same oleoresin's resemblance to diesel fuel attracted attention as a potential biofuel source in the 1980s, though practical yields have proven far lower than early reports suggested.[@joyce2011diesel:calvin-biofuel]
+***Copaifera langsdorffii*** Desf. (Portuguese: ***copaíba***; also commonly called the **diesel tree**, **copaiba**, or **pau-d'óleo**) is a [leguminous](leguminosae) tree in the family [Fabaceae](fabaceae), native to a wide range of Neotropical environments from Guyana to Argentina.[@powo2026copaifera:native-range] The species is one of the most widespread and ecologically important trees of the Brazilian [Cerrado](cerrado) and adjacent biomes. Its trunk yields a liquid oleoresin — known as copaiba oil or *óleo de copaíba* — that has been used in traditional medicine across the Amazon and Central Brazil for centuries, and has attracted scientific interest for its antimicrobial, anti-inflammatory, and potential anticancer properties.[@joyce2011diesel:composition] The same oleoresin's resemblance to diesel fuel attracted attention as a potential biofuel source in the 1980s, though practical yields have proven far lower than early reports suggested.[@joyce2011diesel:calvin-biofuel]
 
 ## Taxonomy and nomenclature
 
-***Copaifera langsdorffii*** was first formally published by the French botanist René Louiche Desfontaines in *Mémoires du Muséum d'Histoire Naturelle* 7: 877 in 1821.[@powo2026copaifera:taxonomy] The genus name *Copaifera* derives from the [Tupi](tupi-language) word *kopa'iwa*, meaning "resin tree", combined with the Latin *fero* (to bear).[@souzajunior2005cerrado:etymology] The species epithet commemorates Georg Heinrich von Langsdorff (1774–1852), a German-Russian physician and naturalist who led a major scientific expedition through Brazil.[@souzajunior2005cerrado:etymology]
+***Copaifera langsdorffii*** was first formally published by the French botanist René Louiche Desfontaines in *Mémoires du Muséum d'Histoire Naturelle* 7: 877 in 1821.[@powo2026copaifera:taxonomy] The genus name *Copaifera* is a Latinisation of the [Tupi](tupi-language) word *kopa'iwa*, meaning "resin tree" or "pau de resina", combined with the Latin *fero* (to bear).[@silvajunior2005cerrado:etymology] The species epithet commemorates Georg Heinrich von Langsdorff (1774–1852), the German-born physician and naturalist who led a major scientific expedition through Brazil, also reflected in the common name *copaíba*, which likewise derives from the same Tupi root.[@silvajunior2005cerrado:etymology]
 
 The species belongs to the order [Fabales](fabales), family [Fabaceae](fabaceae). The subfamily placement has been revised in recent nomenclatural work: it is now placed in [Detarieae](detarieae) rather than the older designation Caesalpinioideae.[@depaula2022nomenclature] Three infraspecific varieties are accepted: *C. langsdorffii* var. *langsdorffii*, var. *glabra* (Vogel) Benth., and var. *grandifolia* Benth.[@powo2026copaifera:taxonomy] A homotypic synonym is *Copaiba langsdorffii* (Desf.) Kuntze (1891).
 
-In Brazil the species is known by numerous popular names, including **óleo-de-copaíba**, **copaíba-vermelha**, **bálsamo**, **oleiro**, **copaíba-da-várzea** (Amazonas), **copaibeira-de-minas**, **copaúba**, **cupiúva**, **óleo-vermelho**, **pau-de-óleo** (Minas Gerais), and **podoi** (Piauí and Ceará).[@lorenzi2002arvores:popular-names]
-
 The genus *Copaifera* comprises more than 70 species distributed across the New World and Africa, with at least 30 species in South and Central America. African *Copaifera* species differ biochemically from New World ones: they produce resins that harden into solid copal (which can fossilize into amber), whereas New World species produce a liquid oleoresin due to higher concentrations of sesquiterpenes.[@joyce2011diesel:composition]
 
 ## Description
 
-*Copaifera langsdorffii* is a medium to large tree, typically reaching 10–15 m in height with trunks of 50–80 cm in diameter.[@lorenzi2002arvores:morphology-lorenzi] The bark is gray-brown and rough, with a cortex that is brown to reddish when scraped, flaky, and composed of thin plates.[@souzajunior2005cerrado:morphology-souza] The trunk contains a network of resin ducts throughout the xylem tissue that store the characteristic oleoresin.
+*Copaifera langsdorffii* is a medium to large semi-deciduous tree, typically reaching 10–15 m in height with trunks of 50–80 cm in diameter.[@lorenzi2020arvores:morphology-wood] In the Cerrado sensu stricto it tends to be smaller, with trunks rarely exceeding 33 cm DBH.[@silvajunior2005cerrado:cerrado-morphology] The bark (ritidoma) is grey-brown and rough, becoming scaly with thin plates and revealing a brown to reddish surface when scraped.[@silvajunior2005cerrado:cerrado-morphology] The trunk contains a network of resin ducts throughout the xylem tissue that store the characteristic oleoresin.
 
-The leaves are alternate and paripinnate (even-pinnate compound), with three to five pairs of leaflets.[@lorenzi2002arvores:morphology-lorenzi] Leaflets are elliptic to oblong, up to 8 cm long and 4 cm wide, with obtuse or rounded apices, asymmetric bases, brochidodromous venation, and a prominent midrib on both surfaces; they are coriaceous and glabrous.[@souzajunior2005cerrado:morphology-souza] Flowers are small, up to 0.5 cm in diameter, white to cream-colored, with five free petals, borne in terminal or axillary panicles or racemes.[@lorenzi2002arvores:morphology-lorenzi][@souzajunior2005cerrado:morphology-souza] The fruit is an ovoid, dehiscent legume pod up to 5 cm in diameter, brown when ripe, typically containing a single seed.[@souzajunior2005cerrado:morphology-souza] Seeds are black, up to 2 cm long, enclosed in a bright orange aril that attracts frugivorous birds as seed dispersers.[@souzajunior2005cerrado:morphology-souza]
+The leaves are alternate and paripinnate (even-pinnate compound). In forest habitats, leaflets number three to five pairs, measuring 4–5 cm × 2–3 cm;[@lorenzi2020arvores:morphology-wood] in the Cerrado, leaflets may number four to 12, are elliptic to oblong, up to 8 cm × 4 cm, with obtuse to retuse apices, brochidodromous venation, and translucent laminar glands in some individuals.[@silvajunior2005cerrado:cerrado-morphology] Flowers are small, up to 0.5 cm in diameter, with five free cream-coloured petals, borne in axillary or terminal panicles.[@silvajunior2005cerrado:cerrado-morphology] The fruit is a dehiscent ovoid legume pod up to 5 cm in diameter, brown when ripe, typically containing a single seed.[@silvajunior2005cerrado:cerrado-morphology] Seeds are up to 2 cm long, black, enclosed in a yellow to orange aril that is attractive to frugivorous birds acting as seed dispersers.[@silvajunior2005cerrado:cerrado-morphology]
 
-## Distribution and habitat
+### Wood
 
-*Copaifera langsdorffii* has one of the widest ranges of any *Copaifera* species in South America. Its native range extends from Guyana southward through Bolivia, all regions of Brazil, Paraguay, and into northeastern Argentina (Misiones province).[@powo2026copaifera:native-range] In Brazil it occurs across the states of CE, GO, MA, MG, MS, MT, PA, PR, SP, and TO, among others,[@souzajunior2005cerrado:density-cerrado] and is found in a variety of phytophysiognomies: the [Cerrado](cerrado) (Brazilian savanna) and its transition zones with semideciduous seasonal forests, gallery and ciliary forests, dry forests, cerradões, terra firme forests, and campo rupestre, as well as portions of the [Atlantic Forest](atlantic-forest) and [Caatinga](caatinga).
+The wood is moderately heavy, with a density of 0.70 g/cm³, straight to irregular grain, lustrous and smooth surface, and differentiated sapwood.[@lorenzi2020arvores:morphology-wood] It is used in construction as beams, rafters, and battens; in carpentry for doors, window frames, furniture, tool handles, gunstocks, and floor planks; and in vehicle bodywork.[@lorenzi2020arvores:morphology-wood] The species also provides good shade and is used in rural and urban afforestation.[@lorenzi2020arvores:morphology-wood]
 
-The species is a typical element of the transition zone between the Cerrado and the semideciduous seasonal forest, and is characteristic of both primary and secondary forest formations.[@lorenzi2002arvores] It grows best on dark-red latosols and lithosols. In the stricto sensu Cerrado of the Federal District, population densities average less than one tree per hectare in 10-ha plots.[@souzajunior2005cerrado:density-cerrado] The species has also been introduced to Sri Lanka.[@powo2026copaifera:native-range]
+## Distribution and habitat
 
-## Timber
+*Copaifera langsdorffii* has one of the widest ranges of any *Copaifera* species in South America. Its native range extends from Guyana southward through Bolivia, all regions of Brazil, Paraguay, and into northeastern Argentina (Misiones province).[@powo2026copaifera:native-range] In Brazil it is found primarily in Minas Gerais, Goiás, Mato Grosso do Sul, São Paulo, Paraná, and the semi-deciduous forests of the Paraná River basin,[@lorenzi2020arvores:morphology-wood] and more broadly in a variety of phytophysiognomies: Cerrado (lato sensu) and its transition zones with semi-deciduous seasonal forests, gallery and ciliary forests, terra firme forests, campo rupestre, and portions of the [Atlantic Forest](atlantic-forest) and [Caatinga](caatinga).
 
-The wood of *C. langsdorffii* has a density of approximately 0.70–0.79 g/cm³,[@lorenzi2002arvores:wood-lorenzi][@souzajunior2005cerrado] with straight or irregular grain and a glossy, smooth surface. It is moderately resistant to decay and has a differentiated sapwood. It is used regionally in construction (beams, rafters, doors, and window frames), furniture-making, flooring, tool handles, and wheel rims.[@lorenzi2002arvores:wood-lorenzi] The tree also produces an excellent shade canopy and is used in rural and urban afforestation.[@lorenzi2002arvores]
+In the Cerrado sensu stricto of the Federal District and the states of CE, GO, MA, MG, MS, MT, PA, PR, SP, and TO, population densities average below one individual per hectare.[@silvajunior2005cerrado:cerrado-distribution-density] The species is a typical element of the transition zone between Cerrado and semi-deciduous forest. It grows best on dark-red latosols and lithosols and tolerates seasonally dry conditions, though in the drier parts of its range it tends to favor riparian zones where soil moisture is higher. It has also been introduced to Sri Lanka.[@powo2026copaifera:native-range]
 
-## Phenology
+## Phenology and reproduction
 
-Leaf flush occurs from July to September.[@souzajunior2005cerrado:phenology-souza] Flowering takes place from September to March according to Souza Júnior,[@souzajunior2005cerrado:phenology-souza] and from December to March according to Lorenzi, with fruits ripening from August to September when the tree is nearly leafless.[@lorenzi2002arvores:phenology-lorenzi] Pollination is carried out by small insects.[@souzajunior2005cerrado:phenology-souza] Fruiting occurs from May to October, with seeds dispersed by birds attracted to the orange aril.[@souzajunior2005cerrado:phenology-souza] Seeds number 1,700–2,200 per kg, can be stored for up to four years at 5°C, and have a germination rate of 85–95% in 17–40 days.[@souzajunior2005cerrado:phenology-souza] Field growth is slow; seedlings do not reach 2 m in height by age two.[@lorenzi2002arvores:phenology-lorenzi]
+The species is semi-deciduous, heliophytic, and selectively xerophytic.[@lorenzi2020arvores:ecology-phenology-lorenzi] Leaf flush occurs July–September; flowering September–March; fruiting May–October.[@silvajunior2005cerrado:phenology-seeds] Flowers are pollinated by small insects.[@silvajunior2005cerrado:phenology-seeds] Fruits ripen August–September and are produced annually in large quantities, widely dispersed by birds.[@lorenzi2020arvores:ecology-phenology-lorenzi] Fruiting follows supra-annual cycles in some populations, with years of intense production alternating with years of little or no fruit.
 
+Seeds number 1,700–2,200 per kg and can be stored for up to four years at 5°C.[@silvajunior2005cerrado:phenology-seeds] Germination rates reach 85–95% in 17–40 days.[@silvajunior2005cerrado:phenology-seeds] In nursery conditions, seedlings are ready for transplanting in 10–12 months; growth in the field is slow, with plants typically not reaching 2 m height by two years of age.[@lorenzi2020arvores:ecology-phenology-lorenzi]
+
 ## Oleoresin
 
@@ -47,5 +47,5 @@
 ## Traditional and ethnobotanical uses
 
-The oleoresin of *Copaifera* trees has been used medicinally across Amazonia and Central Brazil for an estimated several hundred years, and was well established in Indigenous practice long before European contact. Uses documented in ethnobotanical surveys include treatment of wounds, skin diseases (such as eczema and dermatosis), respiratory ailments, urinary tract conditions, and as a general antiseptic and anti-inflammatory agent. The oleoresin has also been used for more esoteric purposes including as an alleged snake bite remedy and contraceptive.[@joyce2011diesel] It also yields varnish, tincture, lacquer, and a yellow dye, and the tree is an important honey plant.[@souzajunior2005cerrado]
+The oleoresin of *Copaifera* trees has been used medicinally across Amazonia and Central Brazil for an estimated several hundred years, and was well established in Indigenous practice long before European contact. Uses documented in ethnobotanical surveys include treatment of wounds, skin diseases (such as eczema and dermatosis), respiratory ailments, urinary tract conditions, and as a general antiseptic and anti-inflammatory agent. It also yields varnish, tincture, lacquer, and a yellow dye, and the species is valued as a melliferous plant.[@silvajunior2005cerrado] The oleoresin has also been used for more esoteric purposes including as an alleged snake bite remedy and contraceptive.[@joyce2011diesel]
 
 The commercial and pharmacological significance of copaiba oleoresin was recognized early in European history: it was listed as a drug in the London Pharmacopoeia in 1677 and added to the United States Pharmacopoeia in 1820.[@joyce2011diesel] Today the oleoresin is sold in popular herbal markets across Brazil and exported for use in cosmetic preparations, varnishes, and pharmaceutical products.
@@ -77,5 +77,5 @@
 The oleoresin plays an important role in the plant's own defense. It is believed to function both as a constitutive defense and as an inducible one — production can be stimulated by mechanical damage or insect attack.[@joyce2011diesel:defense] Seedlings of *C. langsdorffii* have significantly higher sesquiterpene concentrations in their leaves than adult parent trees; in laboratory studies, leaves from seedlings caused 48% mortality in oecophorid moth larvae, while leaves from parent trees caused none.[@joyce2011diesel:defense] This differential suggests a developmental shift in chemical defense strategy as the tree matures.
 
-Seeds are dispersed by frugivorous birds attracted to the orange aril. Pollination is carried out by small insects.[@souzajunior2005cerrado:phenology-souza] The species flowers only once every two to three years in some parts of its range, which complicates population monitoring and silvicultural management.
+Seeds are dispersed by frugivorous birds attracted to the yellow to orange aril.[@silvajunior2005cerrado:cerrado-morphology] Flowers are pollinated by small insects.[@silvajunior2005cerrado:phenology-seeds] The species is also an important melliferous plant, attracting bees for pollen.[@silvajunior2005cerrado]
 
 ## Sustainable harvesting
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 ## Taxonomia e nomenclatura
 
-***Copaifera langsdorffii*** foi formalmente publicada pelo botânico francês René Louiche Desfontaines em *Mémoires du Muséum d'Histoire Naturelle* 7: 877, em 1821.[@powo2026copaifera:taxonomy] O nome genérico *Copaifera* deriva do termo [tupi](língua-tupi) *kopa’iwa*, que significa “pau de resina”, combinado ao latim *fero* (carregar).[@souzajunior2005cerrado:etymology] O epíteto específico homenageia Georg Heinrich von Langsdorff (1774–1852), médico e naturalista germano-russo que liderou uma importante expedição científica pelo Brasil.[@souzajunior2005cerrado:etymology]
+***Copaifera langsdorffii*** foi formalmente publicada pelo botânico francês René Louiche Desfontaines em *Mémoires du Muséum d'Histoire Naturelle* 7: 877, em 1821.[@powo2026copaifera:taxonomy] O nome genérico *Copaifera* é uma latinização do vocabuário [tupi](lingua-tupi) *kopa'iwa*, que significa "pau de resina", combinado com o latim *fero* (carregar).[@silvajunior2005cerrado:etymology] O epíteto específico homenageia Georg Heinrich von Langsdorff (1774–1852), médico e naturalista de origem germano-austríaca que liderou uma importante expedição científica pelo Brasil; o nome popular *copaíba* deriva da mesma raiz tupi.[@silvajunior2005cerrado:etymology]
 
 A espécie pertence à ordem [Fabales](fabales), família [Fabaceae](fabaceae). A posição subfamiliar foi revista em trabalho nomenclatural recente: a espécie é agora classificada em [Detarieae](detarieae), em substituição à designação anterior Caesalpinioideae.[@depaula2022nomenclature] São aceitas três variedades infraespecíficas: *C. langsdorffii* var. *langsdorffii*, var. *glabra* (Vogel) Benth. e var. *grandifolia* Benth.[@powo2026copaifera:taxonomy] Um sinônimo homotípico é *Copaiba langsdorffii* (Desf.) Kuntze (1891).
 
-No Brasil, a espécie é conhecida por numerosos nomes populares, entre eles **óleo-de-copaíba**, **copaíba-vermelha**, **bálsamo**, **oleiro**, **copaíba-da-várzea** (Amazonas), **copaibeira-de-minas**, **copaúba**, **cupiúva**, **óleo-vermelho**, **pau-de-óleo** (Minas Gerais) e **podoi** (Piauí e Ceará).[@lorenzi2002arvores:popular-names]
-
 O gênero *Copaifera* compreende mais de 70 espécies distribuídas pelo Novo Mundo e pela África, com pelo menos 30 espécies na América do Sul e Central. As espécies africanas de *Copaifera* diferem bioquimicamente das neotropicais: produzem resinas que endurecem formando copal sólido (podendo fossilizar em âmbar), ao passo que as espécies do Novo Mundo produzem uma óleo-resina líquida em razão das maiores concentrações de sesquiterpenos.[@joyce2011diesel:composition]
 
 ## Descrição
 
-*Copaifera langsdorffii* é uma árvore de médio a grande porte, tipicamente atingindo de 10 a 15 m de altura, com troncos de 50 a 80 cm de diâmetro.[@lorenzi2002arvores:morphology-lorenzi] A casca é acinzentada a pardo-acinzentada e rugosa; o ritidoma é castanho ou avermelhado quando raspado, escamoso, com placas finas.[@souzajunior2005cerrado:morphology-souza] O tronco contém uma rede de canais resiníferos distribuídos pelo tecido do xilema, nos quais a óleo-resina característica é armazenada.
+*Copaifera langsdorffii* é uma árvore semidecídua de médio a grande porte, tipicamente atingindo de 10 a 15 m de altura com troncos de 50 a 80 cm de diâmetro.[@lorenzi2020arvores:morphology-wood] No cerrado sentido restrito, tende a ser menor, com troncos raramente superiores a 33 cm de DAP.[@silvajunior2005cerrado:cerrado-morphology] O ritidoma é pardo-acinzentado e rugoso, tornando-se escamoso com placas finas e revelando superfície castanha a avermelhada quando raspado.[@silvajunior2005cerrado:cerrado-morphology] O tronco contém uma rede de canais resiníferos distribuídos pelo tecido do xilema, nos quais a óleo-resina característica é armazenada.
 
-As folhas são alternas e paripinadas, com três a cinco pares de folíolos.[@lorenzi2002arvores:morphology-lorenzi] Os folíolos são elípticos a oblongos, de até 8 cm de comprimento e 4 cm de largura, com ápices obtusos ou arredondados, bases assimétricas, nervação broquídódroma e nervura central saliente em ambas as faces; são coriáceos e glabros.[@souzajunior2005cerrado:morphology-souza] As flores são pequenas, com até 0,5 cm de diâmetro, brancas a creme, com cinco pétalas livres, reunidas em panículas ou racemos terminais ou axilares.[@lorenzi2002arvores:morphology-lorenzi][@souzajunior2005cerrado:morphology-souza] O fruto é um legume deiscente ovóide, de até 5 cm de diâmetro, castanho quando maduro, normalmente contendo uma única semente.[@souzajunior2005cerrado:morphology-souza] As sementes são pretas, de até 2 cm de comprimento, envoltas por um arilo alaranjado que atrai aves frugívoras como dispersoras.[@souzajunior2005cerrado:morphology-souza]
+As folhas são alternas e paripinadas (compostas com número par de folíolos). Em ambientes florestais, os folíolos são em 3 a 5 jugos, com 4–5 cm × 2–3 cm;[@lorenzi2020arvores:morphology-wood] no Cerrado, podem ser em 4 a 12 pares, elípticos a oblongos, de até 8 cm × 4 cm, com ápices obtusos a retusos, nervação broquidódroma e glândulas laminares translucentes em alguns indivíduos.[@silvajunior2005cerrado:cerrado-morphology] As flores são pequenas, de até 0,5 cm de diâmetro, com cinco pétalas livres de cor creme, reunidas em panículas axilares ou terminais.[@silvajunior2005cerrado:cerrado-morphology] O fruto é um legume ovoíde deiscente de até 5 cm de diâmetro, castanho quando maduro, contendo normalmente uma semente.[@silvajunior2005cerrado:cerrado-morphology] As sementes medem até 2 cm de comprimento, são pretas e envoltas por um arilo amarelo a alaranjado que atrai aves frugívoras dispersoras.[@silvajunior2005cerrado:cerrado-morphology]
 
-## Distribuição e habitat
+### Madeira
 
-*Copaifera langsdorffii* possui uma das maiores distribuições geográficas entre as espécies de *Copaifera* na América do Sul. Sua área de ocorrência nativa se estende de Guiana, ao norte, passando por Bolívia, todas as regiões do Brasil e Paraguai, até o nordeste da Argentina (província de Misiones).[@powo2026copaifera:native-range] No Brasil, ocorre nos estados CE, GO, MA, MG, MS, MT, PA, PR, SP e TO, entre outros,[@souzajunior2005cerrado:density-cerrado] e é encontrada em diversas fitofisionomias: Cerrado (lato sensu) e suas zonas de transição com florestas estacionais semidecíduas, matas de galeria e ciliares, matas secas, cerradões, florestas de terra firme e campo rupestre, além de porções da [Mata Atlântica](mata-atlantica) e da [Caatinga](caatinga).
+A madeira é moderadamente pesada, com densidade de 0,70 g/cm³, grã direita ou irregular, superfície lustrosa e lisa ao tato, e alburno diferenciado.[@lorenzi2020arvores:morphology-wood] É utilizada na construção civil como vigas, caibros e ripas; na marcenaria para portas, janelas, móveis, cabó de ferramentas, coronhas de armas, assoalhos, lambris e painéis; e em carrocerias.[@lorenzi2020arvores:morphology-wood] A espécie também fornece boa sombra e é utilizada na arborização rural e urbana.[@lorenzi2020arvores:morphology-wood]
 
-A espécie é um elemento típico da zona de transição entre o Cerrado e a floresta estacional semidecídua, ocorrendo tanto em mata primária quanto em formações secundárias.[@lorenzi2002arvores] Desenvolve-se melhor em latossolos vermelho-escuros e litossolos. No cerrado sentido restrito do Distrito Federal, as populações médias são inferiores a uma árvore por hectare em parcelas de 10 ha.[@souzajunior2005cerrado:density-cerrado] A espécie foi também introduzida no Sri Lanka.[@powo2026copaifera:native-range]
+## Distribuição e habitat
 
-## Madeira
+*Copaifera langsdorffii* possui uma das maiores distribuições geográficas entre as espécies de *Copaifera* na América do Sul. Sua área de ocorrência nativa se estende de Guiana, ao norte, passando por Bolívia, todas as regiões do Brasil e Paraguai, até o nordeste da Argentina (província de Misiones).[@powo2026copaifera:native-range] No Brasil, ocorre principalmente em Minas Gerais, Goiás, Mato Grosso do Sul, São Paulo, Paraná e na Floresta Semidecídua da bacia do rio Paraná,[@lorenzi2020arvores:morphology-wood] e mais amplamente em diversas fitofisionomias: Cerrado (lato sensu) e suas zonas de transição com florestas estacionais semidecíduas, matas de galeria e ciliares, florestas de terra firme, campo rupestre, e porções da [Mata Atlântica](mata-atlantica) e da [Caatinga](caatinga).
 
-A madeira de *C. langsdorffii* tem densidade de aproximadamente 0,70 a 0,79 g/cm³,[@lorenzi2002arvores:wood-lorenzi][@souzajunior2005cerrado] grã direita ou irregular e superfície lustrosa e lisa ao tato. É medianamente resistente à secagem e durável sob condições naturais, com alburno diferenciado. Tem uso regional na construção civil (vigas, caibros, ripas, portas e janelas), fabricação de móveis, assoalhos, cabos de ferramentas e carrocerias.[@lorenzi2002arvores:wood-lorenzi] A árvore também fornece ótima sombra e é utilizada na arborização rural e urbana.[@lorenzi2002arvores]
+No cerrado sentido restrito do Distrito Federal e dos estados CE, GO, MA, MG, MS, MT, PA, PR, SP e TO, as populações médias são inferiores a um indivíduo por hectare.[@silvajunior2005cerrado:cerrado-distribution-density] A espécie é um elemento típico da zona de transição entre o Cerrado e a floresta estacional semidecídua. Desenvolve-se melhor em latossolos vermelho-escuros e litossolos, tolerando condições de seca sazonal; nas partes mais secas de sua área de ocorrência, tende a concentrar-se em zonas ripárias, onde a umidade do solo é maior. Foi também introduzida no Sri Lanka.[@powo2026copaifera:native-range]
 
-## Fenologia
+## Fenologia e reprodução
 
-A folhação ocorre de julho a setembro.[@souzajunior2005cerrado:phenology-souza] A floração se dá de setembro a março segundo Souza Júnior,[@souzajunior2005cerrado:phenology-souza] e de dezembro a março segundo Lorenzi, com os frutos amadurecendo em agosto-setembro, quando a árvore se encontra quase sem folhas.[@lorenzi2002arvores:phenology-lorenzi] A polinização é realizada por pequenos insetos.[@souzajunior2005cerrado:phenology-souza] A frutificação ocorre de maio a outubro, com as sementes dispersas por aves atraídas pelo arilo alaranjado.[@souzajunior2005cerrado:phenology-souza] As sementes contam 1.700 a 2.200 por kg, podem ser armazenadas por até quatro anos a 5°C e apresentam taxa de germinação de 85 a 95% em 17 a 40 dias.[@souzajunior2005cerrado:phenology-souza] O crescimento no campo é lento: as mudas não atingem 2 m de altura aos dois anos de idade.[@lorenzi2002arvores:phenology-lorenzi]
+A espécie é semidecídua, heliófita e seletiva xerófita.[@lorenzi2020arvores:ecology-phenology-lorenzi] A folhação ocorre de julho a setembro; a floração, de setembro a março; a frutificação, de maio a outubro.[@silvajunior2005cerrado:phenology-seeds] A polinização é realizada por pequenos insetos.[@silvajunior2005cerrado:phenology-seeds] Os frutos amadurecem de agosto a setembro e são produzidos anualmente em grande quantidade, amplamente disseminados por pássaros.[@lorenzi2020arvores:ecology-phenology-lorenzi] A frutificação segue ciclos supra-anuais em algumas populações, com anos de produção intensa alternados a anos com pouca ou nenhuma produção.
 
+As sementes totalizam 1.700 a 2.200 por kg e podem ser armazenadas por até quatro anos a 5°C.[@silvajunior2005cerrado:phenology-seeds] A taxa de germinação é de 85 a 95% em 17 a 40 dias.[@silvajunior2005cerrado:phenology-seeds] Em viveiro, as mudas atingem o tamanho ideal para plantio em 10 a 12 meses; o crescimento no campo é lento, com as plantas não atingindo tipicamente 2 m de altura aos dois anos de idade.[@lorenzi2020arvores:ecology-phenology-lorenzi]
+
 ## Óleo-resina
 
@@ -47,5 +47,5 @@
 ## Usos tradicionais e etnobotânica
 
-A óleo-resina de árvores de *Copaifera* é usada medicinalmente na Amazônia e no Brasil Central há pelo menos vários séculos, sendo bem estabelecida na prática indígena antes mesmo do contato europeu. Os usos documentados em levantamentos etnobotânicos incluem o tratamento de feridas, doenças de pele (como eczema e dermatose), afecções respiratórias, infecções do trato urinário, e seu emprego como antisséptico e anti-inflamatório geral. A óleo-resina também foi utilizada para fins mais específicos, como suposto remédio contra picadas de cobra e contraceptivo.[@joyce2011diesel] Fornece ainda verniz, tintura, laca e corante amarelo, e a árvore é importante planta melífera.[@souzajunior2005cerrado]
+A óleo-resina de árvores de *Copaifera* é usada medicinalmente na Amazônia e no Brasil Central há pelo menos vários séculos, sendo bem estabelecida na prática indígena antes mesmo do contato europeu. Os usos documentados em levantamentos etnobotânicos incluem o tratamento de feridas, doenças de pele (como eczema e dermatose), afecções respiratórias, infecções do trato urinário, e seu emprego como antisséptico e anti-inflamatório geral. Produz ainda verniz, tintura, laca e corante amarelo, sendo também planta melífera.[@silvajunior2005cerrado] A óleo-resina também foi utilizada para fins mais específicos, como suposto remédio contra picadas de cobra e contraceptivo.[@joyce2011diesel]
 
 A importância comercial e farmacológica do óleo de copaíba foi reconhecida precocemente pela Europa: o produto foi registrado na Farmacopeia de Londres em 1677 e incluído na Farmacopeia dos Estados Unidos em 1820.[@joyce2011diesel] Atualmente, a óleo-resina é comercializada em mercados populares em todo o Brasil e exportada para uso em cosméticos, vernizes e produtos farmacêuticos.
@@ -69,5 +69,5 @@
 ## Potencial como biocombustível
 
-Em 1980, o químico e Prêmio Nobel [Melvin Calvin](melvin-calvin) registrou que a óleo-resina de copaíba era utilizada diretamente como combustível diesel, com processamento mínimo.[@joyce2011diesel:calvin-biofuel] Calvin, que havia iniciado sua busca por plantas produtoras de combustível líquido após o embargo do petróleo de 1973, publicou trabalhos adicionais sobre o tema em 1983 e 1986. Suas observações despertaram interesse em *Copaifera* como uma possível “planta do petróleo”, e plantações foram estabelecidas em Manaus, Amazonas, na década de 1980 para testar a viabilidade da produção de biocombustível em escala. Essas plantações foram posteriormente redirecionadas para a produção de madeira e óleo-resina para fins farmacêuticos, à medida que o preço do diesel convencional caiu.[@joyce2011diesel:calvin-biofuel]
+Em 1980, o químico e Prêmio Nobel [Melvin Calvin](melvin-calvin) registrou que a óleo-resina de copaíba era utilizada diretamente como combustível diesel, com processamento mínimo.[@joyce2011diesel:calvin-biofuel] Calvin, que havia iniciado sua busca por plantas produtoras de combustível líquido após o embargo do petróleo de 1973, publicou trabalhos adicionais sobre o tema em 1983 e 1986. Suas observações despertaram interesse em *Copaifera* como uma possível "planta do petróleo", e plantações foram estabelecidas em Manaus, Amazonas, na década de 1980 para testar a viabilidade da produção de biocombustível em escala. Essas plantações foram posteriormente redirecionadas para a produção de madeira e óleo-resina para fins farmacêuticos, à medida que o preço do diesel convencional caiu.[@joyce2011diesel:calvin-biofuel]
 
 Pesquisas de campo posteriores reduziram substancialmente as estimativas de rendimento prático por árvore (ver seção acima), e nenhuma operação comercial em escala baseada na óleo-resina de *Copaifera* foi documentada. O interesse na espécie como cultura energética, no entanto, persiste em países tropicais, em parte porque a óleo-resina requer pouco ou nenhum refino para ser utilizada como substituto do diesel.
@@ -77,5 +77,5 @@
 A óleo-resina desempenha papel importante na defesa da própria planta. Acredita-se que atue tanto como defesa constitutiva quanto induzida — a produção pode ser estimulada por danos mecânicos ou pelo ataque de insetos.[@joyce2011diesel:defense] Plântulas de *C. langsdorffii* apresentam concentrações de sesquiterpenos significativamente mais elevadas em suas folhas do que as árvores adultas progenitoras; em estudos laboratoriais, folhas de plântulas causaram 48% de mortalidade em larvas de mariposas oecoforídeas, enquanto folhas das árvores adultas não causaram mortalidade alguma.[@joyce2011diesel:defense] Essa diferença sugere uma mudança ontogenética na estratégia de defesa química ao longo do desenvolvimento da árvore.
 
-As sementes são dispersas por aves frugívoras atraídas pelo arilo alaranjado. A polinização é realizada por pequenos insetos.[@souzajunior2005cerrado:phenology-souza] A espécie floresce apenas uma vez a cada dois ou três anos em partes de sua área de ocorrência, o que complica o monitoramento populacional e o manejo silvicultural.
+As sementes são dispersas por aves frugívoras atraídas pelo arilo amarelo a alaranjado.[@silvajunior2005cerrado:cerrado-morphology] As flores são polinizadas por pequenos insetos.[@silvajunior2005cerrado:phenology-seeds] A espécie é também uma importante planta melífera, atraindo abelhas pela sua cópia de pólen.[@silvajunior2005cerrado]
 
 ## Coleta sustentável
FROM AGPEDIA — AGENCY THROUGH KNOWLEDGE

Copaifera langsdorffii

Copaifera langsdorffii Desf. (Portuguese: copaíba; also commonly called the diesel tree, copaiba, or pau-d'óleo) is a leguminous tree in the family Fabaceae, native to a wide range of Neotropical environments from Guyana to Argentina.[1:1] The species is one of the most widespread and ecologically important trees of the Brazilian Cerrado and adjacent biomes. Its trunk yields a liquid oleoresin — known as copaiba oil or óleo de copaíba — that has been used in traditional medicine across the Amazon and Central Brazil for centuries, and has attracted scientific interest for its antimicrobial, anti-inflammatory, and potential anticancer properties.[2:1] The same oleoresin's resemblance to diesel fuel attracted attention as a potential biofuel source in the 1980s, though practical yields have proven far lower than early reports suggested.[2:2]

Taxonomy and nomenclature

Copaifera langsdorffii was first formally published by the French botanist René Louiche Desfontaines in Mémoires du Muséum d'Histoire Naturelle 7: 877 in 1821.[1:2] The genus name Copaifera is a Latinisation of the Tupi word kopa'iwa, meaning "resin tree" or "pau de resina", combined with the Latin fero (to bear).[3:1] The species epithet commemorates Georg Heinrich von Langsdorff (1774–1852), the German-born physician and naturalist who led a major scientific expedition through Brazil, also reflected in the common name copaíba, which likewise derives from the same Tupi root.[3:1]

The species belongs to the order Fabales, family Fabaceae. The subfamily placement has been revised in recent nomenclatural work: it is now placed in Detarieae rather than the older designation Caesalpinioideae.[4] Three infraspecific varieties are accepted: C. langsdorffii var. langsdorffii, var. glabra (Vogel) Benth., and var. grandifolia Benth.[1:2] A homotypic synonym is Copaiba langsdorffii (Desf.) Kuntze (1891).

The genus Copaifera comprises more than 70 species distributed across the New World and Africa, with at least 30 species in South and Central America. African Copaifera species differ biochemically from New World ones: they produce resins that harden into solid copal (which can fossilize into amber), whereas New World species produce a liquid oleoresin due to higher concentrations of sesquiterpenes.[2:1]

Description

Copaifera langsdorffii is a medium to large semi-deciduous tree, typically reaching 10–15 m in height with trunks of 50–80 cm in diameter.[5:1] In the Cerrado sensu stricto it tends to be smaller, with trunks rarely exceeding 33 cm DBH.[3:2] The bark (ritidoma) is grey-brown and rough, becoming scaly with thin plates and revealing a brown to reddish surface when scraped.[3:2] The trunk contains a network of resin ducts throughout the xylem tissue that store the characteristic oleoresin.

The leaves are alternate and paripinnate (even-pinnate compound). In forest habitats, leaflets number three to five pairs, measuring 4–5 cm × 2–3 cm;[5:1] in the Cerrado, leaflets may number four to 12, are elliptic to oblong, up to 8 cm × 4 cm, with obtuse to retuse apices, brochidodromous venation, and translucent laminar glands in some individuals.[3:2] Flowers are small, up to 0.5 cm in diameter, with five free cream-coloured petals, borne in axillary or terminal panicles.[3:2] The fruit is a dehiscent ovoid legume pod up to 5 cm in diameter, brown when ripe, typically containing a single seed.[3:2] Seeds are up to 2 cm long, black, enclosed in a yellow to orange aril that is attractive to frugivorous birds acting as seed dispersers.[3:2]

Wood

The wood is moderately heavy, with a density of 0.70 g/cm³, straight to irregular grain, lustrous and smooth surface, and differentiated sapwood.[5:1] It is used in construction as beams, rafters, and battens; in carpentry for doors, window frames, furniture, tool handles, gunstocks, and floor planks; and in vehicle bodywork.[5:1] The species also provides good shade and is used in rural and urban afforestation.[5:1]

Distribution and habitat

Copaifera langsdorffii has one of the widest ranges of any Copaifera species in South America. Its native range extends from Guyana southward through Bolivia, all regions of Brazil, Paraguay, and into northeastern Argentina (Misiones province).[1:1] In Brazil it is found primarily in Minas Gerais, Goiás, Mato Grosso do Sul, São Paulo, Paraná, and the semi-deciduous forests of the Paraná River basin,[5:1] and more broadly in a variety of phytophysiognomies: Cerrado (lato sensu) and its transition zones with semi-deciduous seasonal forests, gallery and ciliary forests, terra firme forests, campo rupestre, and portions of the Atlantic Forest and Caatinga.

In the Cerrado sensu stricto of the Federal District and the states of CE, GO, MA, MG, MS, MT, PA, PR, SP, and TO, population densities average below one individual per hectare.[3:3] The species is a typical element of the transition zone between Cerrado and semi-deciduous forest. It grows best on dark-red latosols and lithosols and tolerates seasonally dry conditions, though in the drier parts of its range it tends to favor riparian zones where soil moisture is higher. It has also been introduced to Sri Lanka.[1:1]

Phenology and reproduction

The species is semi-deciduous, heliophytic, and selectively xerophytic.[5:2] Leaf flush occurs July–September; flowering September–March; fruiting May–October.[3:4] Flowers are pollinated by small insects.[3:4] Fruits ripen August–September and are produced annually in large quantities, widely dispersed by birds.[5:2] Fruiting follows supra-annual cycles in some populations, with years of intense production alternating with years of little or no fruit.

Seeds number 1,700–2,200 per kg and can be stored for up to four years at 5°C.[3:4] Germination rates reach 85–95% in 17–40 days.[3:4] In nursery conditions, seedlings are ready for transplanting in 10–12 months; growth in the field is slow, with plants typically not reaching 2 m height by two years of age.[5:2]

Oleoresin

Composition

The oleoresin of C. langsdorffii is a transparent, viscous liquid consisting of two chemically distinct fractions: a volatile fraction composed mainly of sesquiterpene hydrocarbons, and a non-volatile fraction composed of diterpene acids.[2:1] β-Caryophyllene is consistently the dominant sesquiterpene, comprising up to approximately 53% of the oleoresin in studies of this species, with other sesquiterpenes such as germacrene B and β-selinene present in smaller quantities. The diterpene acid fraction includes copalic acid, kaurenoic acid, and related compounds. The chemical profile of the oleoresin varies with season, soil type, rainfall, and individual tree, as well as between species within the genus.

Caryophyllene oxide, an oxidation product of β-caryophyllene, is one of the most consistently identified constituents across different extract types from this species.

Tapping and yield

Oleoresin is harvested by boring a hole into the trunk, typically reaching the heartwood, and collecting the liquid that drains out over several hours. The oleoresin is stored primarily in the inner heartwood rather than in actively growing tissues. Yields are highly variable between individual trees and are widely overstated in popular accounts. A 2003 field study by Campbell Plowden in the eastern Brazilian Amazon found a mean first-harvest yield of just 0.07 litres per tree across all trees drilled, and 0.23 litres per tree among those that produced any oleoresin — far below anecdotal reports of 2 litres or more per tree.[6:1] Mid-sized trees with a diameter at breast height (DBH) of 45–65 cm yielded the most, while small trees, very large (often senescent) trees, and hollow trees produced negligible amounts.[6:1] A meaningful proportion of individual trees produce no oleoresin at all on first tapping.

Younger trees that initially produce nothing have sometimes yielded a small amount on a second tapping, which may be due to induction by mechanical damage — a phenomenon also observed in trees with termite infestations.[2]

Traditional and ethnobotanical uses

The oleoresin of Copaifera trees has been used medicinally across Amazonia and Central Brazil for an estimated several hundred years, and was well established in Indigenous practice long before European contact. Uses documented in ethnobotanical surveys include treatment of wounds, skin diseases (such as eczema and dermatosis), respiratory ailments, urinary tract conditions, and as a general antiseptic and anti-inflammatory agent. It also yields varnish, tincture, lacquer, and a yellow dye, and the species is valued as a melliferous plant.[3] The oleoresin has also been used for more esoteric purposes including as an alleged snake bite remedy and contraceptive.[2]

The commercial and pharmacological significance of copaiba oleoresin was recognized early in European history: it was listed as a drug in the London Pharmacopoeia in 1677 and added to the United States Pharmacopoeia in 1820.[2] Today the oleoresin is sold in popular herbal markets across Brazil and exported for use in cosmetic preparations, varnishes, and pharmaceutical products.

Pharmacological research

Multiple pharmacological properties have been investigated for C. langsdorffii oleoresin and its isolated constituents, though the majority of evidence to date comes from in vitro studies and animal models rather than clinical trials in humans.

Antibacterial activity

The oleoresin and several of its isolated compounds have demonstrated antibacterial activity in vitro. Among the diterpenes studied, (−)-copalic acid showed the strongest activity, with promising minimum inhibitory concentration (MIC) values against multiresistant Gram-positive bacteria including Streptococcus pneumoniae and Staphylococcus capitis.[7:1] Time-kill curve assays found that the bactericidal effect against S. pneumoniae emerged within six hours of incubation.[7:1]

Antiproliferative and cytotoxic activity

Copalic acid also exhibited antiproliferative activity in its (−)-enantiomer form against cancer cell lines in vitro, with the lowest IC50 value recorded for a human glioblastoma cell line.[7:1] These findings position copalic acid as a candidate for further investigation in drug development, though no clinical evidence currently exists.

Anti-inflammatory and wound-healing properties

Anti-inflammatory and wound-healing properties have been reported for C. langsdorffii oleoresin in multiple studies using animal models. These effects are consistent with the species' longstanding use in traditional medicine for wounds and inflammatory conditions.[2]

Biofuel potential

In 1980 the Nobel Prize-winning chemist Melvin Calvin noted that copaiba oleoresin was being used as diesel fuel directly from the tree with minimal processing.[2:2] Calvin, who had begun searching for liquid fuel plants following the 1973 oil embargo, published further on the topic in 1983 and 1986. His observations prompted interest in Copaifera as a potential "petroleum plant," and plantations were established in Manaus, Brazil in the 1980s to test the viability of biofuel production at scale. These plantations were later redirected toward timber and pharmaceutical oleoresin production as the price of conventional diesel fuel declined.[2:2]

Subsequent field research has substantially revised downward the estimates of practical yield per tree (see above), and no commercial-scale biofuel operation based on Copaifera oleoresin has been documented. Interest in the species as a biofuel crop has nonetheless continued in tropical countries, partly driven by the fact that the oleoresin requires little or no refining before use as a diesel substitute.

Ecology

The oleoresin plays an important role in the plant's own defense. It is believed to function both as a constitutive defense and as an inducible one — production can be stimulated by mechanical damage or insect attack.[2:3] Seedlings of C. langsdorffii have significantly higher sesquiterpene concentrations in their leaves than adult parent trees; in laboratory studies, leaves from seedlings caused 48% mortality in oecophorid moth larvae, while leaves from parent trees caused none.[2:3] This differential suggests a developmental shift in chemical defense strategy as the tree matures.

Seeds are dispersed by frugivorous birds attracted to the yellow to orange aril.[3:2] Flowers are pollinated by small insects.[3:4] The species is also an important melliferous plant, attracting bees for pollen.[3]

Sustainable harvesting

Copaiba oleoresin extraction has been promoted as a non-timber forest product (NTFP) that can supplement rural and Indigenous livelihoods without requiring forest clearance. If carried out according to appropriate protocols — using a single borehole per tapping, sealing the wound afterward, and allowing sufficient recovery time between harvests — tapping is considered non-destructive.[6] However, the viability of extractivism as an income source is constrained by the low and unpredictable yields per tree, the proportion of non-producing individuals in any given population, and the logistical difficulty of locating and accessing productive trees in forest settings.[6:1]

  1. ^a ^b ^c ↗ native-range ^a ^b ↗ taxonomy (2026). Copaifera langsdorffii Desf. Plants of the World Online. Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:64920-2.
  2. ^a ^b ^c ↗ composition ^a ^b ^c ↗ calvin-biofuel ^a ^b ↗ defense ^a ^b ^c ^d Joyce, Blake Lee; Al-Ahmad, Hani; Chen, Feng; Stewart, C. Neal (2011). Diesel trees. Handbook of Bioenergy Crop Plants. CRC Press. https://staff.najah.edu/media/sites/default/files/24_Diesel_Trees.pdf.
  3. ^a ^b ↗ etymology ^a ^b ^c ^d ^e ^f ^g ↗ cerrado-morphology ^ ↗ cerrado-distribution-density ^a ^b ^c ^d ^e ↗ phenology-seeds ^a ^b Silva Júnior, Manoel Cláudio da; Correia dos Santos, Gilmar; Nogueira, Paulo Ernane; Munhoz, Cássia Beatriz Rodrigues; et al. (2005). 100 Árvores do Cerrado: Guia de Campo. Rede de Sementes do Cerrado, Brasília. ISBN 85-7238-158-9.
  4. ^ Paula-Souza, Juliana de; Lima, Ana Gisele de; Silva Costa, Juliana Araujo; Queiroz, Luciano Paganucci de (2022). A step out of the chaos — a nomenclatural revision of New World Copaifera (Fabaceae, Detarieae). Annals of the Missouri Botanical Garden. https://doi.org/10.3417/2021782.
  5. ^a ^b ^c ^d ^e ^f ↗ morphology-wood ^a ^b ^c ↗ ecology-phenology-lorenzi Lorenzi, Harri (2020). Árvores Brasileiras: Manual de Identificação e Cultivo de Plantas Arbóreas Nativas do Brasil. Instituto Plantarum de Estudos da Flora, Nova Odessa, SP. ISBN 978-65-87655-00-0.
  6. ^a ^b ^c ↗ yield-data ^ Plowden, Campbell (2003). Production ecology of copaíba (Copaifera spp.) oleoresin in the eastern Brazilian Amazon. Economic Botany. https://doi.org/10.1663/0013-0001(2003)057[0491:PEOCCS]2.0.CO;2.
  7. ^a ^b ^c ↗ copalic-acid-activity Abrão, Fariza; Araújo Costa, Luciana Delfino de; Alves, Jacqueline Morais; Senedese, Juliana Marques; et al. (2015-12-21). Copaifera langsdorffii oleoresin and its isolated compounds: antibacterial effect and antiproliferative activity in cancer cell lines. BMC Complementary and Alternative Medicine. https://doi.org/10.1186/s12906-015-0961-4 https://pmc.ncbi.nlm.nih.gov/articles/PMC4687089/.
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