Hura crepitans L.
  • Sp. Pl.
  • Assacú-vermelho


Cite taxon page as 'WFO (2020): Hura crepitans L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000215711. Accessed on: 10 Apr 2020'

General Information

Trees up to 40 m tall in wild; stem and main branches densely spiny; indumentum yellowish brown; branches densely lenticellate, glabrous. Stipules lanceolate or ovate-lanceolate, 10-15 × 2-3 mm, pubescent, caducous; petiole 4-20 cm, apex with 2 glands; leaf blade broadly ovate, 5-29 × 5-17 cm, papery, abaxially pilose along midrib, adaxially glabrous, base cordate, margins ± shallowly dentate-serrate, apex caudate-acuminate, mucronulate; midrib elevated on both surfaces, lateral veins 10-13(-16) on each side. Male flowers: inflorescence ovoid-conical, (1.6-)4-5 × (0.8-)1.5-2 cm, mostly dark red; peduncles (1.2-)7-10 cm, often with solitary female flower at base; pedicel ca. 2 mm; calyx tube 2-3 mm; stamen connectives and filaments connate into column, 4-12 mm, longest at base of catkin; anthers in (1 or)2 or 3 whorls. Female flowers: pedicel 10-17 mm, after anthesis up to 6 cm; calyx tube truncate, 4-6(-8) mm, enclosing ovary; style column 2-5 cm; stigmatic disk dark purple, 1.5-2.5 cm in diam., with 11-14 obtuse lobes, spreading radially. Fruiting pedicel pendent, to 6 cm; fruit oblate, 3-5 × 8-9 cm in diam., becoming reddish brown, concave at apex and base, longitudinally grooved. Seed ca. 2 cm in diam. Fl. May, fr. Aug.

  • Provided by: [J].Flora Of CHina @ efloras.org
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    Trees, to 30 m; latex copious, caustic. Leaves: stipules leaving scar around stem, 6–10 × 2–4 mm; petiole 10–20 cm, glands 2 adaxially at apex; blade broadly ovate to orbiculate, 10–25 × 8–15 cm, base cordate, margins crenate-serrulate with 10–20 teeth on each side, apex acuminate; midvein and secondary veins prominent. Staminate inflorescences: peduncle (2–)5–10(–15) cm, fertile portion 2–5 cm, 60–80-flowered; staminate bracts membranaceous, enclosing flowers prior to anthesis. Pedicels: pistillate 1–5 cm. Staminate flowers: calyx cup-shaped, 1 mm, 3–5-lobed; staminal column to 2.5 mm, anthers usually in 2, rarely in 3, whorls. Pistillate flowers red; calyx cup-shaped, 3–5(–8) mm, 5-lobed; style 30–50 mm, terminating in thick apical disc 1 cm diam. with 5–20 radiating lobes 5–10 mm. Capsules depressed-globose, 3–5 × 6–10 cm. Seeds brownish, 15–20 mm diam., 5–8 mm thick, smooth.

  • Provided by: [E].Flora of North America @ efloras.org
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    Hura crepitans L., Sp. Pl. 1008. 1753.

    Plantas hasta 30 m de alto. Hojas glabras en la haz, más o menos pilosas en el envés, o al menos con algunos tricomas hacia la base del nervio principal; pecíolos hasta 18 cm de largo. Espigas estaminadas cónicas, 1.5–3 cm de largo, brácteas ca 1.5 mm de largo, anteras en 2–4 verticilos.

    Común, en bosques de galería y bosques secos en la zona pacífica; 0–100 m; fl y fr todo el año; Stevens 3839, 9554; Nicaragua al norte de Sudamérica, también en las Antillas. A pesar de que algunos autores indican que no hay diferencias vegetativas evidentes entre H. crepitans y H. polyandra, la diferencia en la pubescencia de las hojas parece ser constante, al menos en Centroamérica.

  • Provided by: [I].Flora de Nicaragua
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    Trees to 25 m, but often kept much lower when used as living fence posts. Leaves on petioles to 20 cm long; blade ovate to orbicular, 12-25 cm long and 7-15 cm wide, prominently penninerved, sparsely long-pubescent on the lower surface, the base cordate, the margin crenate with teeth often glandular tipped, the apex acuminate to subcuspidate. Staminate flowers 60-80 on conical fleshy axis 2-4.5 cm long, peduncle to 10 cm long; calyx to 1 mm long; staminal column to 2 mm long with 2-3 verticels of anthers, the third rarely complete. Pistillate flowers with pedicels to 5 cm long; calyx 3-5 mm long, truncate, or rarely shallowly 5-toothed; stylar column 2.5-5 cm long, the fleshy apical disc to 1 cm diam with radiating tips an additional 1 cm long. Capsule woody, oblate, to ca 8 cm diam, 3-5 cm long, dehiscing explosively into ca 15 crescentic cocci; seeds smooth, flattened, sub- orbicular, to 2 cm diam.

  • Provided by: [G].Flora de Panama
    • Source: [
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    Árbol, 4–35 m, monoico, con indumento de tricomas simples, el tronco armado (usualmente en la base) con espinas agudas, la savia incolora o rojiza; estípulas 0.6–1.2 cm, deciduas. Hojas alternas, el pecíolo con glándulas en el ápice; lámina simple, 5–15 X 4–12 cm, ovada a ovado-deltada, usualmente cordada en la base, no lobulada, diminutamente aserrada a crenada. Infls. unisexuales, las masculinas terminales, espigadas, 2–5  cm, con las fls. agrupadas en una estructura cónica, con brácteas membranáceas que encierran las fls. antes de la antesis, las femeninas axilares, de 1 fl. solitaria (raramente en la base de las espigas masculinas). Fls. estaminadas 3–5 mm, sin disco; sépalos totalmente connatos en un cáliz cupuli- forme y truncado; pétalos ausentes; estambres numerosos, los filamentos nulos, las anteras dispuestas en 2(3) verticilos sobre una columna central; pistiloide ausente. Fls. pistiladas 40–60 mm, sin disco; sépalos 5, connatos en un cáliz cupuli- forme, truncado o dentado; pétalos ausentes; ovario 5–20- locular; óvulos 1 por lóculo; estilos (tantos como los lóculos) connatos en una columna larga y gruesa, con las ramas extendidas distalmente. Frs. capsulares, 3–5 cm, redondeado- oblatos, los mericarpos explosivamente dehiscentes; semillas lisas, sin carúncula.

  • Provided by: [F].Manual de Plantas de Costa Rica
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    Morphology

    Petioles up to 15 cm. long, glabrous; glands turbinate, truncate; leaf-blades broadly ovate to orbicular-ovate, (5–)10–15(–18) cm. long, (3–)6–12 cm. wide, obtusely or subacutely cuspidate-acuminate, truncate to shallowly or deeply cordate, entire, subentire or shallowly and rather remotely serrate-denticulate, occasionally somewhat repand, thinly to firmly chartaceous, lateral nerves 8–15 pairs, not or scarcely prominent above, slightly so beneath, tertiary nerves ± parallel, glabrous above, patent-pilose along the midrib and main nerves at least towards the base and otherwise glabrous beneath, or else ± completely glabrous above and beneath, bright green and shiny above, somewhat paler and duller beneath.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
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    Stipules linear-lanceolate, (1–)1.5–2 cm. long, ± entire, densely pubescent abaxially, glabrous adaxially, or else ± glabrous on both surfaces, minutely ciliolate, readily deciduous.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
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    Inflorescences extending to 15 cm. long at maturity, with the peduncle up to 11 cm. long, and the ♂ portion cylindric-conic, 4–6 cm. long and 2 cm. wide when fully expanded, dull red, viscid; bracts rhombic, 1.5 mm. long, evenly to sparingly pubescent.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
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    Male flowers: calyx minute, scarcely visible; staminal column 5–7 mm. long, glabrous, anthers (1–)2–3-verticillate, 0.5 mm. long.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
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    Female flowers: peduncle 1–2 cm. long, 2–4 mm. thick; calyx-tube up to 7 mm. long and 8 mm. diameter, completely enclosing the ovary, purple; ovary subglobose, pale green; style 2–4 cm. long, stigma 1–2 cm. across, dark red.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
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    Fruit deeply 5–20-lobed, concave at the apex and base, 4 cm. long, 8 cm. diameter, the lobes ± smooth, greenish.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 10
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    Seeds ± lenticular, 2.2 cm. long, 2 cm. deep, 4 mm. thick, smooth, dull brownish.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 10
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    Bark light grey, covered with sharp spines.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 10
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    A much-branched tree up to 24 m. high, but more often 6–12 m. high, with a spreading crown.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 10
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    Bole up to 2 m. diameter.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
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    Twigs sparingly lenticellate.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 10
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    Young shoots glabrous or sparingly pubescent.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 10
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    Habit

    Trees

  • Provided by: [G].Flora de Panama
    • Source: [
    • 14
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    Distribution

    Costa Rica, the West Indies, Panama to tropical South America.

  • Provided by: [G].Flora de Panama
    • Source: [
    • 14
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    Distribution Map

     
    • Native distribution
    Found in
    • Southern America Brazil Acre
    • Amapí
    • Amazonas
    • Parí
    • Rondônia
    • Roraima

     Information From

    Euphorbiaceae
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    • B Missouri Botanical Garden
    • C Missouri Botanical Garden
    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • D
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • E Flora of North America Association
    Manual de Plantas de Costa Rica
    http://www.tropicos.org/Project/Costa%20Rica
    Hammel, B. E.; Grayum, M. H.; Herrera, C.; Zamora, N. Manual de Plantas de Costa Rica. Missouri Botanical Garden Press, 2003-2014
    • F Missouri Botanical Garden
    Flora de Panama
    http://www.tropicos.org/Project/PAC
    Robert E. Woodson, Jr. and Robert W. Schery Annals of the Missouri Botanical Garden Vol. 67, No. 4 (1980), pp. ii-xxxiii
    • G Missouri Botanical Garden
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    http://floradobrasil.jbrj.gov.br
    Brazil Flora G (2014): Brazilian Flora 2020 project - Projeto Flora do Brasil 2020. v393.147. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro. Dataset/Checklist. doi:10.15468/1mtkaw
    • H Group Brazil Flora, REFLORA Program
    Flora de Nicaragua
    http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • I Missouri Botanical Garden
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • J Missouri Botanical Garden
    World Flora Online consortium
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    • K CC0 1.0 Universal (CC0 1.0).
    Global Tree Assessment
    http://www.bgci.org/
    BGCI. 2018. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, U.K. Available at www.bgci.org. Accessed on 30/11/2018.
    • L Botanic Gardens Conservation International