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Blakley's spineflower

Chorizanthe blakleyi

Blakley's spineflower is a rare, small annual wildflower endemic to the Sierra Madre Mountains of Santa Barbara County, California, growing only on north-facing chaparral and woodland slopes. It is a rare native that is not grown in gardens, so care is listed only as general guidance for similar Chorizanthe annuals.

Family
Polygonaceae (Buckwheat family)
Grows as
Annual
Light
Part shade
Water
Sow in autumn or late winter and water lightly until established, then rely on winter rain; avoid waterlogging.
Soil
Well-drained, sandy or gravelly soil with low fertility.
Temperature
Mild, cool-season conditions; tolerates frost, protect from hard freezes below -5 °C.
How easy
Hard
Native range
California (Santa Barbara Co.)
Climate
subtropical

About

Chorizanthe blakleyi is a rare species of flowering plant in the buckwheat family known by the common name Blakley's spineflower. It is endemic to the Sierra Madre Mountains of Santa Barbara County, California, where it is known from only eight occurrences, four of which are within the bounds of the Los Padres National Forest. It grows only on north-facing slopes in chaparral and woodland habitat. This plant grows upright to no more than 15 centimeters tall. It is yellow-green and hairy, with a few basal leaves up to about 2 centimeters long. The inflorescence contains several flowers, each surrounded by a tube of six hairy bracts with straight or hooked awns. The flower is a few millimeters wide with white or pink deeply notched tepals.

Other Chorizanthe plants

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

Text excerpted from the Wikipedia article Chorizanthe blakleyi 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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