Helenium bolanderi A.Gray
  • Proc. Amer. Acad. Arts vii. (1868) 358.


Cite taxon page as 'WFO (2021): Helenium bolanderi A.Gray. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000003569. Accessed on: 23 Oct 2021'

General Information

Perennials, 25–140 cm. Stems usually 1, usually unbranched distally, weakly winged, glabrous proximally, sparsely to moderately hairy distally. Leaves glabrous or sparsely hairy; basal and proximal blades spatulate, entire; mid and distal blades ovate to oblanceolate to oblong-elliptic, entire. Heads 1(–3) per plant, usually borne singly. Peduncles 10–30(–50) cm, usually densely hairy (tomentose near involucres). Involucres depressed hemispheric to globoid, 14–24 × 18–34 mm. Phyllaries (connate proximally) usually tomentose. Ray florets 15–30, pistillate, fertile; corollas yellow, (12–)16–28(–37) × 6–13(–25) mm. Disc florets 300–750(–1000+); corollas yellow proximally, yellow to brown to purple distally, 4–5(–5.2) mm, lobes 5. Cypselae 1.5–2.5 mm, moderately to densely hairy; pappi of 6–8 entire, aristate scales (2.5–)3–4.5 mm. 2n = 32.

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

     Information From

    Compositae
    CC0 1.0 Universal (CC0 1.0). https://creativecommons.org/publicdomain/zero/1.0
    • 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. 2018.
    • C CC0 1.0 Universal (CC0 1.0).