Achlys DC.
  • Syst. Nat. 2: 35. 1821.
  • [Greek Achlus, a god of night]

Cite taxon page as 'WFO (2020): Achlys DC. Published on the Internet; Accessed on: 29 Feb 2020'

General Information

Herbs , perennial, deciduous, 2.5-5 dm, glabrous. Rhizomes extensive, branching, producing 1-few foliage leaves or flowering shoots per year. Aerial stems absent. Leaves basal, alternate, 3-foliolate; petiole long, slender. Leaf blade orbiculate in gross outline, 20-40 cm; leaflet blades fan-shaped, entire or lobed, lateral leaflet blades strongly asymmetric, margins entire to coarsely sinuate; venation palmate. Inflorescences terminal, dense scapose-pedunculate spikes of inconspicuous flowers. Flowers 3-merous, white to cream, 6 mm or less; bracteoles absent; sepals absent; petals absent; stamens 8-10(-13); anthers dehiscing by 2 apically hinged flaps; pollen exine striate; ovaries asymmetrically ellipsoid; placentation marginal, placenta developed only near base of ovary. Fruits follicles with transverse dehiscence, purplish red or brown, curved, furrowed. Seeds 1, brown; aril absent. x = 6.

  • Provided by: [B].Flora of North America @
    • Source: [
    • 1
    • ]. 



    Fukuda, I. 1967. The biosystematics of Achlys. Taxon 16: 308-316. Fukuda, I. and H. G. Baker. 1970. Achlys californica --(Berberidaceae)--a new species. Taxon 19: 341-344.

  • Provided by: [B].Flora of North America @
    • Source: [
    • 1
    • ]. 

    Other Local Names

    [Greek Achlus, a god of night]

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    World Flora Online consortium
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).