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San Francisco spineflower

Chorizanthe cuspidata

San Francisco spineflower
Photo: Nicholaswei, CC BY-SA 4.0

San Francisco spineflower is a small, low-growing annual wildflower native to the sandy coast of northern California, mostly around the San Francisco Bay Area. It is a rare species, and its key to growing it is providing sandy, well-drained coastal conditions with full sun.

Family
Polygonaceae (Buckwheat family)
Grows as
Annual
Light
Full sun
Water
Water sparingly; it is adapted to dry summers and needs little supplemental water once established.
Soil
Sandy, well-drained soil.
Temperature
Mild coastal conditions; tolerates cool, foggy coastal climates, frost-sensitive.
How easy
Moderate
Native range
NW. California
Climate
temperate

About

Chorizanthe cuspidata is a species of flowering plant in the buckwheat family known by the common name San Francisco spineflower. It is endemic to California, where it is known only from the San Francisco Bay Area and to the immediate north and south. It grows in sandy coastal habitat.

Other Chorizanthe plants

Narrowleaf spineflower · Irish Hills Spineflower · Twolobe spineflower · Blakley's spineflower · Brittle spineflower · San Luis Obispo spineflower · Wrinkled spineflower · Diffuse spineflower · Douglas' spineflower · Fringed spineflower · Mendocino spineflower · Ramona spineflower

Text excerpted from the Wikipedia article Chorizanthe cuspidata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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