Helianthella castanea


Erythea 1: 127. 1893.

Treatment appears in FNA Volume 21. Treatment on page 117. Mentioned on page 115.
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Plants 15–45 cm. Cauline leaves: largest proximal to mid stems; blades sometimes ± 3-nerved, oblong or elliptic to broadly-oblanceolate, 10–15 cm, faces sparsely hirsute (mostly abaxially and near margins). Heads borne singly, erect. Involucres hemispheric, 25–40 mm diam. Phyllaries (usually outer 3–4+ foliaceous, 3–10 cm, curling over heads) lanceolate to lance-oblong (margins usually ciliate, abaxial faces densely pubescent or glabrate). Paleae chartaceous, relatively firm. Ray florets 12–21; laminae (10–)20–30 mm. Disc corollas yellow. Cypselae weakly compressed (plump in middles, edges thin, faces, glabrous); pappi 0 or of 2 ± subulate scales. 2n = 30.

Phenology: Flowering Apr–May.
Habitat: Grassy hillsides
Elevation: 0–1200 m


Helianthella castanea is known only from the San Francisco Bay area.

Selected References


Lower Taxa

... more about "Helianthella castanea"
William A. Weber +
Greene +
0–1200 m +
Grassy hillsides +
Flowering Apr–May. +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Helianthella castanea +
Helianthella +
species +