Helianthella castanea

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Helianthella castanea
File:Helianthella castanea 1.jpg
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Helianthella
Species:
H. castanea
Binomial name
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.[2] 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.[3][4]

References

  1. ↑ "NatureServe Explorer 2.0".
  2. ↑ Calflora taxon report, University of California, Helianthella castanea E. Greene, Diablo helianthella, Mt. Diablo helianthella
  3. ↑ Flora of North America, Helianthella castanea Greene, 1893.
  4. ↑ Greene, Edward Lee. 1893. Erythea 1(6): 127

External links

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