Helianthella californica

Helianthella californica is a species of flowering plant in the sunflower family known by the common name California helianthella. This wildflower is native to the mountains of California, northwestern Nevada, and southwestern Oregon.[2][3]

Helianthella californica
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Asteroideae
Tribe:
Heliantheae
Genus:
Helianthella
Species:
H. californica
Binomial name
Helianthella californica
Gray 1857
Synonyms[1]
  • Helianthella nevadensis Greene, syn of subsp. nevadensis

Helianthella californica is a taprooted perennial herb producing erect stems up to about 60 centimeters (2 feet) tall. The many lance-shaped leaves are up to 4 centimeters (1.6 inches) wide and up to 26 cm (11 inches) long, smooth or slightly toothed along the edges. The inflorescence holds one or more sunflower-like flower heads. Each head has a center of golden disc florets with purple or reddish parts, and a fringe of yellow ray florets one or two centimeters (0.4-0.8 inches) long.[4]

Subspecies[1][3]
  • Helianthella californica subsp. californica - Coast Ranges in area near San Francisco Bay plus a few populations in northern Sierra Nevada Foothills
  • Helianthella californica subsp. nevadensis (Greene) W.A.Weber - Sierra Nevada + Cascades in California, Nevada, + Oregon
  • Helianthella californica subsp. shastensis (W.A.Weber) W.A.Weber - southern Cascades plus Shasta-Trinity area
Leaves

References
  1. The Plant List, Helianthella californica A.Gray
  2. Biota of North America Program 2014 county distribution map
  3. Calflora taxon report, University of California, Helianthella californica A. Gray, California helianthella
  4. Flora of North America, Helianthella californica A. Gray 1857.


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