Ambrosia ilicifolia (A.Gray) W.W.Payne
  • J. Arnold Arbor. 45


Cite taxon page as 'WFO (2021): Ambrosia ilicifolia (A.Gray) W.W.Payne. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000121067. Accessed on: 26 Oct 2021'

General Information

Shrubs, 30–50(–120+) cm. Stems erect. Leaves mostly alternate; petioles 0–2 mm; blades (green) elliptic to ovate, 25–60+ × 12–35+ mm, bases rounded to truncate, margins spiny-toothed, abaxial and adaxial faces ± hirtellous (on veins) and stipitate-glandular. Pistillate heads clustered, proximal to staminates; florets 2. Staminate heads: peduncles 2–8(–12) mm; involucres ± saucer-shaped, 9–15+ mm diam., ± hirtellous and stipitate-glandular; florets 20–40+. Burs: bodies ± globose, 6–8 mm, stipitate-glandular, spines 40–50+, scattered, subulate, 4–6 mm, tips straight or ± uncinate. 2n = 36.

  • 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).