Psilactis tenuis S.Watson
  • Proc. Amer. Acad. Arts 26: 139 (1891)


Cite taxon page as 'WFO (2022): Psilactis tenuis S.Watson. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000007895. Accessed on: 02 Dec 2022'

General Information

Annuals or biennials, 25–100 cm. Stems and branches coarsely antrorse- or erect-hairy, often scabrous, usually stipitate-glandular distally, sometimes proximally. Distal leaf blades sessile, linear-lanceolate to narrowly elliptic or linear, smallest 3–4 × 1–1.5 mm. Involucres broadly turbinate, 4–6 mm. Phyllaries linear-lanceolate to linear, equal or slightly unequal, 2.5–5 × 0.3–0.6 mm, bases indurate, margins scarious. Receptacles convex, 1.8–2.5 mm diam. Ray florets 10–35; laminae 5–8 × 0.7–1 mm. Disc florets 20–55; corollas 3–4 mm. Ray cypselae 1.2–1.7 mm, sparsely appressed-hairy. Disc cypselae 1.5–2.5 mm, sparsely appressed-hairy; pappi 20–35, 2.5–4 mm. 2n = 8.

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

     Information From

    Asteraceae
    http://worldfloraonline.org/organisation/Asteraceae
    Asteraceae. The daisy family. World Flora Online Data. 2022.
    • A CC0 1.0 Universal (CC0 1.0).
    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.
    • B Flora of North America Association
    World Flora Online Consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2017.
    • C CC0 1.0 Universal (CC0 1.0).