JSTOR Global Plants Home
  • Home
  • Browse
  • About
  • Access
  • Account
    • Saved Items
    • Profile
  • Log in

Global Plants

Skip to Main Content
  • JSTOR Global Plants Home
  • Global Plants

    • Browse
    • About
    • Access
    • Account
      • Saved Items
      • Profile
Log in
  • Browse
  • About
  • Access
  • Account
    • Saved Items
    • Profile
Advanced Search

Compilation
Hemizonia leucocephala

3 Images see all

Isotype of Hemizonia leucocephala Tanowitz [family ASTERACEAE]
Holotype of Hemizonia leucocephala Tanowitz [family ASTERACEAE]
Isotype of Hemizonia leucocephala Tanowitz [family ASTERACEAE]
Previous
Next

Name

Identification
Isotype of Hemizonia leucocephala Tanowitz [family ASTERACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Hemizonia congesta
  • Hemizonia leucocephala

Flora

Entry for Hemizonia congesta de Candolle subsp. congesta [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 21,
Names
Hemizonia congesta de Candolle subsp. congesta [family COMPOSITAE]
Hemizonia congesta subsp. leucocephala (Tanowitz) D. J. Keil [family COMPOSITAE]
Hemizonia leucocephala Tanowitz [family COMPOSITAE]
Treatment Author(s)
Bruce G. Baldwin
John L. Strother
Information
Leaves villous (the distal often with hairs longer at margins), all or distal glandular, often sparsely (rarely eglandular). Heads (some or all) usually in glomerules, sometimes in corymbiform or paniculiform arrays. Peduncles 0 or 1–4 mm, bracts not surpassing phyllaries. Calyculi 0. Phyllaries 6–10 mm, apices usually longer than bodies. Ray florets 5–13; laminae white, abaxially purple-veined. Cypsela widths 0.5–0.6 times lengths. 2n = 28.
Conservation Status
of conservation concern;
Phenology
may (spring), jun-aug (summer), sep-nov (fall)
Altitude range
0–100 m;
Distribution
USA Calif.
Discussion
Subspecies congesta occurs in the San Francisco Bay area and North Coast Ranges. Natural hybrids between subsp. congesta and subsp. lutescens have been reported (E. B. Babcock and H. M. Hall 1924).

Related Materials

  • Terms and Conditions
  • Privacy Policy
  • Cookie Policy
  • Cookie Settings
  • Accessibility
  • Help
  • Contact Us
  • Facebook
  • Twitter
ITHAKA

JSTOR is part of ITHAKA, a not-for-profit organization helping the academic community use digital technologies to preserve the scholarly record and to advance research and teaching in sustainable ways.

©2000-2026 ITHAKA. All Rights Reserved. JSTOR®, the JSTOR logo, JPASS®, Aluka®, and ITHAKA® are registered trademarks of ITHAKA.

╳