Boehmeria Jacq.
  • Enum. Syst. Pl. 9, 31. 1760. (Aug-Sept 1760)
  • False-nettle [for G. R. Böhmer, German botanist]


Cite taxon page as 'WFO (2021): Boehmeria Jacq. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000004863. Accessed on: 16 Oct 2021'

General Information

Herbs, subshrubs, or shrubs , perennial, rhizomatous, without stinging hairs, sparsely to ± densely pubescent or tomentose with hooked, curved, or straight, nonstinging hairs on all parts of plant. Stems simple to freely branched, erect. Leaves opposite or nearly opposite, or alternate; stipules present. Leaf blades lanceolate to broadly ovate, base rounded to cordate, less often cuneate, margins dentate or serrate, apex acuminate; cystoliths rounded. Inflorescences axillary, spikelike or paniculate. Flowers unisexual, staminate and pistillate flowers on same plant, rarely on different plants, in remote or crowded clusters in same or separate inflorescence; bracts linear. Staminate flowers: tepals 4; stamens 4; pistillode globose. Pistillate flowers: tepals 4, connate, adnate to ovary; staminodes absent; style persistent, elongate; stigma linear, straight or hooked. Achenes sessile, laterally compressed, ovoid, nearly orbicular, or ellipsoid, tightly enclosed by persistent perianth. x = 14.

  • Provided by: [I].Flora of North America @ efloras.org
    • Source: [
    • 10
    • ]. 

    1. Boehmeria Jacq.

    Duretia Gaudich., Ramium Kuntze, Splitgerbera Miq.

    Por C.M. Wilmot-Dear, I. Friis y A.K. Monro.

    Arbustos, árboles pequeños, hierbas o trepadoras, perennes. Hojas opuestas o alternas, frecuentemente en pares dimorfos, en ocasiones dísticas, 3-nervias desde la base con nervaduras superiores o sin estas, con frecuencia bilateralmente asimétricas, los márgenes dentados; cistolitos puntiformes, las estípulas interpeciolares, libres. Inflorescencias bisexuales o unisexuales, dispuestas sobre ramas axilares o terminales, estas frecuentemente modificadas por la reducción parcial o completa de las hojas, las flores sésiles o cortamente pediceladas, en panículas densamente congestas, similares a glomérulos en las axilas de hojas como brácteas, reducidas o no modificadas, o a lo largo de los tallos axilares sin hojas. Flores unisexuales, envueltas por una bractéola deltada, rojo-parda. Flores estaminadas (3)4-meras, los tépalos frecuentemente con un apéndice subapical; pistilodio presente. Flores pistiladas con los tépalos fusionados formando un tubo que encierra completamente al ovario, el tubo apicalmente dentado; estigmas 1, rara vez 2, filiformes y lateralmente papilosos o filiformes y terminalmente papilosos, con frecuencia persistentes en el fruto. Frutos en aquenios con un tubo de tépalos acrescentes, rara vez el tubo del perianto longitudinalmente alado; aquenios ovoides, dorsiventralmente comprimidos, la superficie no brillante. Cosmopolita. Aprox. 40-50 spp.

    La terminología para las hojas asimétricas, anisofilas y las hojas asociadas con los ejes floríferos se basa en Wilmot-Dear y Friis (1996): hojas en un par dimorfo (ya sea opuestas o alternas) se refieren como lámina “menor” y “mayor”.

    Bibliografía: Weddell, H.A. Arch. Mus. Hist. Nat. 9: 343-386 (1856-1857 [1856]); Prodr. 16(1): 195-218 (1869). Wilmot-Dear, C.M. y Friis, I. Opera Bot. 129: 5-103 (1996).

  • Provided by: [F].Flora Mesoamericana
    • Source: [
    • 11
    • 1
    • ]. 

    BOEHMERIA Jacq.

    Hierbas, arbustos o árboles pequeños, tricomas urticantes ausentes; plantas monoicas o dioicas. Hojas alternas u opuestas, márgenes dentados, cistolitos punctiformes generalmente presentes en la haz, 3-nervias desde la base; estípulas laterales y generalmente libres, deciduas. Inflorescencias variadas pero con flores en agregados o glomérulos; flores masculinas con perianto 3 ó 4-partido; flores femeninas con perianto fusionado y formando un tubo que envuelve completamente al ovario, dentado en el ápice, estilo y estigma lineares. Aquenio envuelto dentro del tubo fuertemente persistente.

    Un género con 40–50 especies distribuidas principalmente en los trópicos de América y Asia pero extendiéndose a las zonas templadas del este de Asia y este de Norteamérica, también en Africa y Australia; en Nicaragua se conocen 5 especies. B. radiata W.C. Burger, ampliamente distribuida en Centroamérica pero raramente colectada, se reconoce por los tubos del perianto fructífero angostamente elipsoides, hirsútulos y de color café y se podría encontrar en Nicaragua. Dos especies adicionales se conocen de Costa Rica, B. aspera Wedd. y B. bullata ssp. coriacea (Killip) Friis & Wilmot-Dear, ambas con hojas alternas y ampollosas. B. pavonii Wedd. una especie que difiere del resto de las especies nicaragüenses en tener indumento sedoso-brillante muy adpreso en el envés de las hojas, ha sido reportada de Guatemala como una disyunción desde Panamá y Sudamérica.

  • Provided by: [D].Flora de Nicaragua
    • Source: [
    • 12
    • ]. 

    Trees small, shrubs, subshrubs, or perennial herbs, without stinging hairs. Leaves alternate or opposite; stipules deciduous, intrapetiolar, free or rarely connate at base; leaf blade 3-veined, margin dentate, rarely 2- or 3-lobed; cystoliths punctiform. Inflorescence an axillary glomerule, on normal leafy stems or on specialized, slender, mostly axillary, occasionally terminal, shoots, these unbranched and spikelike to branched and panicle-like, mostly unisexual, less often bisexual. Flowers unisexual (plants monoecious or dioecious); bracts and bracteoles small, scarious. Male flowers: perianth (3 or)4 or 5-lobed or parted, segments valvate; stamens (3 or)4 or 5; filaments inflexed in bud; rudimentary ovary clavate or subglobose. Female flowers: perianth tubular, usually compressed, apex 2-4-toothed, in fruit sometimes enlarged and dilated into 2 acute angles or wings; staminodes absent. Ovary included; stigma filiform, on a style, pilose on 1 side, usually persistent for some time; ovule orthotropous. Achene not lustrous, enclosed by marcescent perianth, Seed with endosperm; cotyledons elliptic or ovate.

  • Provided by: [H].Flora Of CHina @ efloras.org
    • Source: [
    • 14
    • ]. 

    Trees, shrubs, or perennial herbs, unarmed and without stinging hairs; leaves opposite or alternate, toothed, 3-nerved, those of the adjacent nodes sometimes unequal and dissimilar; plants monoecious or dioecious, the flowers in globose, usually unisexual clusters in the axils of the leaves or forming a spike; staminate flowers 3 or 4 (rarely 5) -parted; pistillate flowers tubular, contracted at the throat, 2-4-toothed or entire, the stigma filiform, the achene enclosed in the persistent, sometimes enlarged perianth.

  • Provided by: [C].Flora de Panama
  • "Monoecious or dioecious; male fls minute, with 4-parted cal and 4 stamens; female fls with tubular, flattened to ovoid cal minutely 2–4-toothed at the summit; ovary enclosed by the cal; style filiform, exsert; fr an achene surrounded by the accrescent cal, the latter narrowly 2 winged; style persistent; herbs, shrubs, or small trees with opposite or alternate lvs and axillary infls. 100, warm reg."

  • Provided by: [J].New York Botanical Garden
    • Source: [
    • 16
    • ]. 

    Morphology

    Achene enclosed in the persistent membranous perianth.

  • Provided by: [G].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Female flowers with tubular perianth, often contracted at apex, with 2–4 teeth, enclosing the ovary, of which only the filiform, persistent stigma protrudes

  • Provided by: [G].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Male flowers (3–)4(–5)-merous; rudimentary ovary present

  • Provided by: [G].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Inflorescences cymose or racemose, with nearly always unisexual clusters of flowers, sessile along the axes of the inflorescence, bracts small, deciduous

  • Provided by: [G].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Leaves alternate or opposite, equal- or unequal-sided, dentate, sometimes lobed; stipules free, lateral or ± connate

  • Provided by: [G].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Small trees or shrubs, sometimes woody-based herbaceous perennials, monoecious or dioecious, usually ± pubescent

  • Provided by: [G].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Male flowers (3)4(5)-merous with membranaceous tepals, rudimentary ovaries present or absent.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 9
    • ]. 

    Female flowers with tubular perianths, constricted and 2–4-toothed at the apices, completely enclosing the ovaries. Style filiform, not articulated, with a one-sided filiform stigma.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 9
    • ]. 

    Leaves alternate or opposite, petiolate, lamina triplinerved, equal- or unequal-sided, dentate sometimes lobed; stipules lateral, free or ± connate.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 9
    • ]. 

    Inflorescences axillary, usually spike-like, with the flowers gathered in unisexual glomerules along the inflorescence axis (rarely sessile and globular); bracts small, deciduous.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 9
    • ]. 

    Achene completely enclosed in and partly adnate to the persistent perianth.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 9
    • ]. 

    Cystoliths dot-like.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 9
    • ]. 

    Shrubs or small trees, sometimes woody-based herbaceous perennials, monoecious or dioecious, usually ± pubescent, stinging hairs absent.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 9
    • ]. 

    Plantes'suffrutescentes, arbustes ou petits arbres, à feuilles opposées ou alternes, dentées, trinerves, à cystolithes punctiformes; stipules en général libres.'Inflorescences'en général unisexuées, axillaires, spiciformes, paniculées ou en glomérules sessiles.'Fleurs'♂ en général 4-mères, à segments membraneux, appendiculés; fleurs ♀ à périgone tubuleux, comprimé ou renflé, à orifice contracté, 2-4-denté, enveloppant l'ovaire et ± adhérent à celui-ci; stigmate allongé, persistant.'Akènes enveloppés dans le périgone.\n\t\t\t\tPlus de 50 espèces, surtout tropicales, une indigène au Congo belge, une autre parfois cultivée et rarement subspontanée.

  • Provided by: [E].Flore d'Afrique Centrale
    • Source: [
    • 18
    • ]. 

    Habit

    Trees, shrubs, or herbs

  • Provided by: [C].Flora de Panama
  • Included Species

    Synonyms

    Other Local Names

    NameLanguageCountry
    False-nettle [for G. R. Böhmer, German botanist]

      Bibliography

     Information From

    MBG Floras Images
    http://www.tropicos.org/ImageSearch.aspx
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • A Missouri Botanical Garden
    Plants Of the World Online Portal - FZ
    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
    • B
    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
    • C 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
    • D Missouri Botanical Garden
    Flore d'Afrique Centrale
    https://www.floredafriquecentrale.be
    • E http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International (CC BY 4.0)
    Flora Mesoamericana
    http://www.mobot.org/MOBOT/fm/
    Gerrit Davidse, Mario Sousa Sánchez, A. O. Chater, Universidad Nacional Autónoma de México. Instituto de Biología, Missouri Botanical Garden, Natural History Museum (London, England) UNAM, 1994
    • F 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
    • G
    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.
    • H Missouri Botanical Garden
    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.
    • I Flora of North America Association
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • J Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Urticaceae
    • K CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • L CC0 1.0 Universal (CC0 1.0).