Croton hirtus L'Hér.
  • Stirp. Nov.


Cite taxon page as 'WFO (2020): Croton hirtus L'Hér. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000931249. Accessed on: 26 Oct 2020'

General Information

Croton hirtus L'Hér., Stirp. Nov. 17. 1785; C. glandulosus var. hirtus (L'Hér.) Müll. Arg.; C. glandulosus ssp. hirtus (L'Hér.) Croizat.

Hierbas anuales, 0.1–0.5 m de alto, ramitas estrellado-híspidas. Hojas elípticas a ovadas, 2–6.5 cm de largo y 1.5–5 cm de ancho, agudas u obtusas en el ápice, cuneadas a redondeadas en la base, márgenes gruesamente crenados, duplicado-dentados, estrigosas con tricomas mayormente simples en la haz, estrellado-tomentosas en el envés, mayormente 5-nervias en la base; pecíolos 0.3–2.5 cm de largo, glándulas apicales apareadas, 0.1–0.3 mm de diámetro, obviamente pediculadas, estípulas subuladas, 1.5–4.5 mm de largo. Racimos bisexuales, terminales, hojas subyacentes reducidas, 0.5–2.5 cm de largo, flores pistiladas 5–12, solitarias en los nudos inferiores; flores estaminadas con pedicelos 0.5–1 mm de largo, sépalos valvados, elípticos, 1–1.5 mm de largo, pétalos oblanceolados, 1–1.5 mm de largo, glabros, receptáculo glabro o casi así, estambres 8–11, filamentos glabros, anteras 0.4–0.5 mm de largo; flores pistiladas con pedicelos hasta 0.5–1.5 mm de largo cuando en fruto, sépalos valvados, lineares a oblanceolados, subenteros, obviamente desiguales, los más largos 4–6.5 mm de largo cuando en fruto, el quinto reducido, pétalos rudimentarios, ovario estrellado-hispídulo, estilos libres o basalmente connados, bífidos o bipartidos, 1.7–2.5 mm de largo. Cápsula ca 3.5 mm de ancho; semillas comprimidas, 2.6–3.1 mm de largo, menudamente rostradas, lisas.

Común como maleza en ambientes alterados, zonas pacífica y norcentral; 0–950 m; fl y fr todo el año; Stevens 9976, 13306; ampliamente distribuida en América tropical.

  • Provided by: [E].Flora de Nicaragua
    • Source: [
    • 4
    • ]. 

    Annual herb becoming mostly 1-4 dm high; monoecious; stems conspicuously retrorsely stellate-hispid (hairs ca 1.5-2.5 mm long). Leaves membranous; petioles of leaves on main stem stellate-hispidulous, ca 3-25 mm long; stipules greenish, subulate, subentire, sparsely stellate, ca (1.5-)2.5-4.5 mm long, the glands at apex of petiole 2, distinctly stalked, 0.5-1.2 mm long, 0.1-0.3 mm broad across the flattened head; blades elliptic to more commonly ovate, 2-6.5 cm long, 1.5-5 cm broad (or smaller in depauperate specimens), bright green and rather sparsely strigose-hispid above, minutely glandular-punctate beneath, stellate with 6-10- radiate hairs (radii spreading, hairs ca 0.3-0.8 mm across), the veins at base of larger leaves 5, with ca 3-6 additional veins on each side, the base cuneate, the margins of larger leaves coarsely crenate-duplicidentate, with ca 10-15 major teeth on each side, the apex acute or obtuse. Inflorescences terminal, (the branching pat- tern of well-developed plants ? dichasial), bisexual, (0.5-)1-2.5 cm long, usually nearly sessile and subtended by reduced leaves, with mainly 5-12 proximal solitary 9 flowers and 4-7 solitary distal d flowers; bracts greenish, linear-lanceolate to subulate, glandular-capitate, with 4 or more slender-stalked ellipsoid glands at base (representing bifid stipules), 2-5 mm long (or reduced distally). Staminate flowers with stellate-pubescent pedicels 0.5-1 mm long; calyx-lobes 5, elliptic, hispidulous-stellate, ca 1-1.5 mm long; receptacle glabrous or nearly so; stamens 11, the filaments 0.8-1.1 mm long, glabrous, the anthers elliptic, 0.4-0.5 mm long. Pistillate flowers subsessile, the stout stellate-pubescent pedicels becoming 0.5-1.5 mm long in fruit; calyx-lobes usually 4 (the 5th rudimentary or obsolete), linear to oblanceolate, distinctly unequal, the two larger 1.5-2.5 mm long and 0.4-1.1 mm broad, the two smaller 0.8-1.9 mm long and 0.2-0.3 mm broad (becoming somewhat larger in fruit); disc 5-angled, adnate to the base of the calyx-lobes; petals ellipsoidal, 0.2-0.3 mm long; ovary densely stellate-hispidulous, the styles connate at base or nearly free, ? erect, bifid or bipartite, 1.7-2.5 mm long, the style-branches slender, hispidulous, 1.5-1.8 mm long. Capsules subglobose, stellate- hispidulous, ca 3.5 mm diam, the columella slender, ca 2.8 mm long; seeds com- pressed, blackish-brown, smooth (minutely foveolate-reticulate), minutely beaked, 2.6-3.1 mm long, 1.8-2.3 mm broad, the caruncle broadly ovate, 0.4-0.6 mm long, 0.7-1.6 mm broad.

  • Provided by: [G].Flora de Panama
    • Source: [
    • 5
    • ]. 

    Hierba anual, 0.1–1 m, con indumento de tricomas estrellados; ramitas densamente híspidas con tricomas hasta ca. 3.5 mm, ± urticantes; estípulas 0.2–0.45 cm, lineares, enteras. Hojas alternas a subopuestas o (cerca de las infls.) verticiladas, el pecíolo con 2 glándulas pediculadas en el ápice abaxial; lámina 2–7+ X 1–7 cm, ovada a rómbica o elíptica, aguda a redondeada en la base, aguda a obtusa en el ápice, no lobulada, crenada o dentada, tomentosa en el envés, palmadamente nervada. Infls. racemosas, 2–4 cm; bractéolas lineares, ± persistentes. Fls. estaminadas con pétalos; estambres 8–11. Fls. pistiladas con pedicelo hasta ca. 0.5–1.5 mm; sépalos 4, subenteros; estilos casi separados, con 2 brazos cada uno. Frs. 0.3–0.4 cm.

  • Provided by: [H].Manual de Plantas de Costa Rica
    • Source: [
    • 6
    • ]. 

    Morphology

    Leaves whorled, opposite or alternate; petiole 4–9 mm. long, densely to evenly stellate-hirsute; blade ovate, 2–5 cm. long, 1–3 cm. wide, acute or subacute, cuneate or ± rounded, with 2 stipitate discoid basal glands at the apex of the petiole, bicrenate-biserrate, membranaceous, 5-nerved from the base, lateral nerves 3–6 pairs, sparingly ± simply hirsute on the upper surface, but stellate-hirsute along the midrib and main nerves above, evenly stellate-hirsute beneath.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Stipules filiform, 3–5 mm. long, sparingly stellate-pubescent.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Racemes terminal, 1.5–2.5 cm. long, the lower half ♀, the upper half ♂; axis evenly stellate-pubescent; bracts linear, 2–3 mm. long, sparingly stellate-pubescent and often also with long gland-tipped branched or unbranched hairs at the base.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Male flowers: pedicels 1 mm. long, pubescent; calyx-lobes 5, elliptic-ovate, 1 mm. long, 0.5 mm. wide, acute, stellate-pubescent without, glabrous within, with an apical tuft of hairs; petals 5, linear-oblong, 1 mm. long, sparingly pubescent, white; disc-glands free, obovoid; stamens 10, filaments 1.5 mm. long, subglabrous, anthers 0.3 mm. long; receptacle pilose.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Female flowers: pedicels 1.5 mm. long, pubescent; calyx-lobes 5, unequal, oblong-linear, 2–4 mm. long, 0.5–0.7 mm. wide, obtuse, sparingly stellate-pubescent without, glabrous within, slightly accrescent; petals 0; disc ± pentagonal, very flat; ovary subglobose-subtrilobate, 1 mm. long, 1 mm. diameter, sparingly stellate-pubescent; styles 3, shortly united at the base, 1.5 mm. long, ± erect, sparingly pubescent, bifid almost to the base, the lobes filiform.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Fruit trilobate-subglobose, 3 mm. long, 3 mm. diameter, septicidal, sparingly stellate-pubescent.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Seeds somewhat compressed-ovoid, 2.5 mm. long, 2–2.5 mm. wide, grey or brownish mottled, minutely reticulate-rugulose, shiny, with a small caruncle.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Stems stiffly stellate-hispid, the stellate hairs with one ray much larger than the others.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    A monoecious annual herb up to 45 cm. high, commonly with a single stem which is 3-branched about halfway up, the branches then themselves 3- or else 2-branched.

  • Provided by: [F].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Habit

    herb

  • Provided by: [G].Flora de Panama
    • Source: [
    • 5
    • ]. 

    Distribution

    Widespread in disturbed habitats in tropical America.

  • Provided by: [G].Flora de Panama
    • Source: [
    • 5
    • ]. 

    Distribution Map

     
    • Native distribution
    Found in
    • Southern America Brazil Parí
    • Tocantins
    • Alagoas
    • Bahia
    • Ceará
    • Maranh
    • Paraába
    • Pernambuco
    • Piauá
    • Rio Grande do Norte
    • Sergipe
    • Paraní
    • Santa Catarina
    • Minas Gerais
    • São Paulo
    • Brazilia Distrito Federal
    • Goiás

     Information From

    Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
    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
    • A Group Brazil Flora, REFLORA Program
    Euphorbiaceae
    • B CC0 1.0 Universal (CC0 1.0).
    MBG Floras Images
    http://www.tropicos.org/ImageSearch.aspx
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • C Missouri Botanical Garden
    • D Missouri Botanical Garden
    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
    • E 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
    • F
    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
    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
    • H Missouri Botanical Garden
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • I CC0 1.0 Universal (CC0 1.0).