Osmorhiza Raf.
  • Amer. Monthly Mag. & Crit. Rev. 4(3): 192. 1819. (Jan 1819)

Cite taxon page as 'WFO (2020): Osmorhiza Raf. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000027384. Accessed on: 30 Oct 2020'

General Information

21. Osmorhiza Raf., nom. cons.

Por L. Constance y J. Affolter.

Hierbas perennes, delgadas a robustas, erectas, caulescentes, ramificadas, pelosas a glabrescentes, con gruesas raíces fasciculadas. Hojas alternas, pecioladas, membranáceas, ternadas o ternado-pinnadas, los folíolos lanceolados a orbiculares, serrados a pinnatífidos con dientes o lobos mucronados; pecíolos envainadores. Inflorescencias de umbelas laxas, compuestas, pedunculadas; involucro generalmente ausente; radios escasos, delgados, ascendentes a divaricados y reflexos, desiguales; involucelo de varias bractéolas angostas, foliáceas, reflexas o ausentes; pedicelos patentes a divaricados. Cáliz ausente; pétalos espatulados a obovados, blancos, amarillo-verdosos o purpúreos, con un ápice inflexo más angosto; estilos delgados o ausentes, el estilopodio cónico. Frutos lineares a oblongos, cilíndricos a claviformes, lateralmente comprimidos, no constrictos en la comisura, híspido-cerdosos a glabros, la base redondeada a caudata, el ápice obtuso, atenuado, rostrado o constricto; carpóforo hendido a menos de la mitad; costillas angostas, agudas, frecuentemente con appendices cerdosas; vitas inconspicuas o ausentes; semilla cóncava a sulcada. Aprox. 10 spp. Canadá a Tierra del Fuego y E. Siberia al Himalaya y SO. China.)

Bibliografía: Lowry II, P.P. y Jones, A.G. Ann. Missouri Bot. Gard. 71: 1128-1171 (1984).

La única especie en Mesoamérica es Osmorhiza mexicana .

  • Provided by: [C].Flora Mesoamericana
    • Source: [
    • 1
    • ]. 

    Herbs perennial. Stem erect or decumbent at base, branched, glabrous or pubescent. Petiole sheath narrow, scarious; leaf blade triangular-ovate in outline, 2–3-ternate-pinnate (Chinese species); segments serrate to pinnatifid. Umbels loosely compound; peduncles terminal and lateral, usually exceeding the leaves; bracts few or absent; rays few, slender, unequal, lengthening and spreading in fruit; bracteoles several or occasionally absent, reflexed. Calyx teeth obsolete. Petals white, purple or greenish yellow, spatulate to obovate with a narrow inflexed apex. Stylopodium conic; styles slender, sometimes minute. Fruit (Chinese species) narrowly clavate, terete to slightly laterally flattened, apex obtuse, base caudate; ribs filiform, acute, with apically pointed bristles; vittae obscure or absent. Seed subterete in cross section, face concave. Carpophore bifid at apex, cleft up to 1/2 of its length.

  • Provided by: [B].Flora Of CHina @ efloras.org
    • Source: [
    • 2
    • ]. 

    "Fr linear to narrowly clavate, slightly flattened laterally, the base prolonged (in our spp.) into bristly tails, the ribs slender, acute, ± appressed-bristly; oil-tubes obscure or none; carpophore bifid less than half length; fls white or greenish-white; umbels peduncled, terminal and lateral, usually surpassing the lvs, few-rayed, with or without invol; umbellets few-fld; sep obsolete; pet white; erect perennials from thickened roots; lvs twice ternately compound, the lower petiolate, the upper subsessile, the ultimate segments ovate to lanceolate, serrate or lobed. 11, N. Amer., Andes, and e. Asia. Our spp. are habitally similar, 4–8 dm, pubescent to subglabrous, with mostly 3–6 widely ascending to divaricate rays, each ray with 3–6 fertile pedicels to 15 mm, usually mixed with some sterile ones."

  • Provided by: [D].New York Botanical Garden
    • Source: [
    • 3
    • ]. 


     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora Of CHina @ efloras.org
    '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.
    • B Missouri Botanical Garden
    Flora Mesoamericana
    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
    • C Missouri Botanical Garden
    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.
    • D Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    World Flora Online consortium
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).