Helianthella castanea
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Mt. Diablo helianthella
The rare 1.5′ beauty is a perennial herb limited to the Bay Area, mostly around Mount Diablo.
The long 6 ” leaves surround the long stems of bright cheery yellow sunflowers in the spring.
Grows best in thin well drained soils.
Companion plants include Chamise, Sagebrush, Coyote brush, Needle grasses and Mules ears to name a few.
Lifeform: Perennial
Sun: Full Sun, Part Shade
Other: Attracts Bees, Attracts Butterflies, Drought Tolerant
Container | D-16, D-40 |
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Ecological Value | Threatened by urbanization, grazing, and fire suppression. Possibly threatened by road maintenance, recreational activities, and non-native plants. |
Historical Uses | No Historical Uses found. |
Distribution | It is only found in the San Francisco Bay Area, mostly in and around Mount Diablo State Park. |
Elevation | 20' – 3652' |
Communities | |
Habitat | Open, grassy places |