Chorizanthe diffusa Benth.
  • Pl. Hartw. : 333 (1857)
  • Diffuse spineflower


Cite taxon page as 'WFO (2022): Chorizanthe diffusa Benth. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000603460. Accessed on: 01 Dec 2022'

General Information

Plants spreading, decumbent, prostrate, or rarely slightly erect, 0.3-1(-1.5) × 0.5-2(-10) dm, villous. Leaves basal; petiole 0.2-1.8(-2) cm; blade oblanceolate, 0.3-2 × 0.1-0.4 cm, villous. Inflorescences rather dense with secondary branches suppressed, white to greenish; bracts 2, similar to leaf blades at proximal nodes only reduced, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 0.3-2 cm × 1-4 mm, awns absent. Involucres 1, mostly greenish, cylindric, not ventricose, 2-2.5 mm, with thin to broad and then conspicuous white or pinkish to purple, scarious margins extending nearly full length of awn, not corrugate, villous-hirsute; teeth spreading to divergent, equal, 0.5-1 mm, awns uncinate with longer ones 1-2 mm, anterior one mostly 2 mm, alternating with shorter (0.5-1 mm) ones. Flowers exserted; perianth bicolored with floral tube lemon-yellow and tepals white, campanulate, 2.5-3 mm, glabrous; tepals connate ca. 1/ 3 their length, monomorphic, oblong, acute to obtuse and entire apically; stamens 3-9, slightly exserted; filaments distinct, 1.5-2 mm, glabrous; anthers yellow, oval, 0.3-0.4 mm. Achenes dark brown, globose-lenticular, 2-2.5 mm. 2n = 38, 40, 42.

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

    Other Local Names

    NameLanguageCountry
    Diffuse spineflower

     Information From

    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.
    • A Flora of North America Association
    Polygonaceae
    World Flora Online Data. 2021.
    • B CC0 1.0 Universal (CC0 1.0).
    World Flora Online Consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2017.
    • C CC0 1.0 Universal (CC0 1.0).