Chorizanthe robusta var. hartwegii Calflora

Distribution by County 2052

Chorizanthe robusta Parry var. hartwegii (Benth.) Reveal & Rand. Morgan

Robust spineflower, Scott's valley spineflower

Chorizanthe robusta var. hartwegii is an annual herb that is native to California, and endemic (limited) to California.

California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).

Federal status: Endangered.

Record Count by County


Monterey: 1	San Francisco: 1	Santa Cruz: 63

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 11/12/2025).