Diablo Helianthella

Carried by 2 nurseries

Estimated plant range Estimated plant range

Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Plant description

The perennial herb Helianthella castanea is a rare plant endemic to California, and is only found in the San Francisco Bay Area, mostly in and around Mount Diablo State Park. Its common names include Mount Diablo helianthella, Mount Diablo sunflower, and Diablo rockrose. A member of the daisy and sunflower family, the flowers are bright yellow and daisy-like, with ridged petals. The plant grows in clumps of green foliage and sends up flowers on long stems.

Plant overview

Plant type

Perennial herb

Size

2 ft Tall

Color

Yellow, Green

Flowering season

Spring

Landscaping information

Sun

Full Sun

Natural setting

Site type

Open, grassy places

Plant communities

Chaparral, Foothill Woodland, Northern Coastal Scrub, Valley Grassland

Alternative names

Common names:

Mt. Mount Mount Diablo Sunflower, Diablo Rockrose

Sources

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