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Priest Valley spineflower

Chorizanthe ventricosa

Also called Potbellied Spineflower

Priest Valley spineflower
Photo: Trevor Van Loon, CC BY 4.0

Priest Valley spineflower is a small annual herb from California's Coastal Ranges that grows on serpentine soils. It is not a common garden plant, and it is grown mainly by native plant enthusiasts and in restoration projects, where success depends on its specialized serpentine soil needs.

Family
Polygonaceae (Buckwheat family)
Grows as
Annual
Light
Full sun
Water
Water sparingly and let the soil dry out between waterings, as it is adapted to a dry, seasonal climate.
Soil
Well-drained, low-fertility serpentine or lean sandy-gravelly soil.
Temperature
10–30 °C; tolerates cool winters and hot dry summers, protect from hard frost
How easy
Hard
Native range
California (S. San Benito Co., SE. Monterey Co., NE. San Luis Obispo Co., W. Fre
Climate
subtropical

About

Chorizanthe ventricosa, common name Priest Valley spineflower, is a plant species endemic to a small region in the Coastal Ranges of west-central California. It is found only on serpentine outcrops in grasslands and pine-oak woodlands at elevations of 500–1000 m. It has been reported from 4 counties: Monterey, San Benito, Fresno and San Luis Obispo.

Chorizanthe ventricosa is an herb up to 70 cm tall, forming large spreading colonies. Leaves are up to 5 cm long. Flowers are formed in clusters up to 6 cm across, with green bracts with pointed tips giving the impression of spines. Flowers are 2-colored, white or yellow plus red or maroon.

Other Chorizanthe plants

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

Text excerpted from the Wikipedia article Chorizanthe ventricosa 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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