Caulophyllum Michx.
  • Fl. Bor.-Amer. 1: 204–205, pl. 21. 1803.
  • Blue cohosh, caulophylle [Greek caulos, stem, and phyllos, leaf]


Cite taxon page as 'WFO (2020): Caulophyllum Michx. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000007064. Accessed on: 29 Feb 2020'

General Information

Herbs , perennial, deciduous, to 2-9 dm, glabrous. Rhizomes nodose, producing 2 leaves per year. Aerial stems present. Leaves caducous, cauline, 2-ranked, 1st leaf larger than 2d leaf, 2-4-ternately compound; petioles short or absent. Leaf blade broadly obovate in overall outline; rachis pulvinate; leaflet blades broadly obovate, entire or lobed, margins not toothed; venation pinnate to palmate. Inflorescences terminal, compound cymes. Flowers 3-merous, 6-20 mm; bracteoles caducous, 3-4, sepaloid; sepals 6, yellow, purple, red, brown, or green, petaloid; petals 6, fan-shaped, bearing nectar; stamens 6; anthers dehiscing by 2 apically hinged flaps; pollen exine reticulate; ovary bladderlike; placentation appearing basal; styles eccentric. Fruits not developed, ovary wall soon rupturing. Seeds 2, elevated on elongating stalk, naked at maturity; seed coat blue, fleshy, glaucous; aril absent. x = 8.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Herbs, perennial, deciduous, glabrous. Rhizome creeping, stout, nodose, with numerous fibrous roots. Aerial stem erect. Leaves alternate, 2 or 3 × ternately compound, broadly ovate in overall outline; petiole short or leaves sessile; pinnules petiolulate or sessile, ovate, obovate, or broadly lanceolate, undivided or lobed, venation pinnate or palmate, margin entire. Inflorescences terminal, compound cymes. Flowers 3-merous; bracteoles 3 or 4, sepaloid, caducous. Sepals 6, petaloid, yellow, red, purple, or green. Petals 6, fan-shaped or obovate, nectary-like. Stamens distinct; anthers dehiscing by 2 apically hinged flaps; pollen prolate, 3-colporate, exine reticulate. Ovary bladderlike; placentation basal; styles eccentric. Fruit not developing, ovary wall soon rupturing and seed coat becoming fleshy and fruitlike. Seeds 2, raised on elongating stalk, naked at maturity, globose; seed coat tunic-blue, fleshy, glaucous. x = 8.

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

    "Sep 6, biseriate, petaloid, subtended by 3 or 4 sepal-like bracts; pet 6, biseriate, represented only by small, stipitate-flabellate, gland-like nectaries opposite and much shorter than the sep; stamens 6; ovary asymmetrical, tapering above and with a minute apicolateral stigma; poisonous smooth perennial herbs, the erect stem bearing above the middle a single large, sessile, triternate lf, simulating 3 biternate lvs, and another smaller lf just below the infl; ovary soon ruptured by the enlarging seeds, which ripen fully exposed on short, stout stalks and resemble drupes. 2, the other in e. Asia."

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

    Literature

    SELECTED REFERENCES

    Brett, J. F. 1981. The Morphology and Taxonomy of Caulophyllum thalictroides (L.) Michx. (Berberidaceae) in North America. M.S. thesis. University of Guelph. Loconte, H. and W. H. Blackwell. 1985. Intrageneric taxonomy of Caulophyllum (Berberidaceae). Rhodora 87: 463-469. Loconte, H. and J. R. Estes. 1989. Generic relationships within Leonticeae (Berberidaceae). Canad. J. Bot. 67: 2310-2316. Moore, R. J. 1963. Karyotype evolution in Caulophyllum. Canad. J. Genet. Cytol. 5: 384-388.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Other Local Names

    NameLanguageCountry
    Blue cohosh, caulophylle [Greek caulos, stem, and phyllos, leaf]

     Information From

    Berberidaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    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.
    • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    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.
    • C 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.
    • D Flora of North America Association
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).