Helianthella castanea

Helianthella castanea is a rare plant endemic to California, and is found only in the San Francisco Bay Area, mostly in the hills east of the bay, including in Mount Diablo State Park, Wildcat Canyon Regional Park, Briones Regional Park, Las Trampas Regional Wilderness, and surrounding areas. Its common names include Mount Diablo helianthella, Mount Diablo sunflower, and Diablo rockrose.[1]

Helianthella castanea
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Asteroideae
Tribe:
Heliantheae
Genus:
Helianthella
Species:
H. castanea
Binomial name
Helianthella castanea
E.Greene 1893

Helianthella castanea is a herbaceous plant up to 45 cm (18 inches) tall. Leaves are up to 15 cm (6 inches) long. The plant usually produces one yellow flower head per stem. Each head contains both ray flowers and disc flowers.[2][3]

See also
  • Endemic flora of the San Francisco Bay Area
  • Flora of the California chaparral and woodlands

References
  1. Calflora taxon report, University of California, Helianthella castanea E. Greene, Diablo helianthella, Mt. Diablo helianthella
  2. Flora of North America, Helianthella castanea Greene, 1893.
  3. Greene, Edward Lee. 1893. Erythea 1(6): 127
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.