Eriogonum umbellatum polyanthum
From California Natives Wiki
Species Name: Eriogonum umbellatum var. polyanthum
Common Name: Sulphur Buckwheat
- Handsome groundcover with bright yellow blooms. Recommended for rock gardens, borders and steep slopes. Needs periodic, deep summer water in warmer Southern California climates.
- Plant Family: Polygonaceae
- Plant Type: Perennial
- Height by Width: 1' H and spreading
- Growth Habit: Mat-forming
- Deciduous/Evergreen: Evergreen
- Growth Rate: Fast
- Sun Exposure: Full to part sun
- Soil Preference: Well-draining, rocky
- Water Requirements: Drought-tolerant to moderate
- Cold Hardy to: 15 degrees F
- Flower Season: Summer
- Flower Color: Bright yellow
- Endangered?: Not listed
- Distribution: Klamath Range, Cascade Range, northern Sierra Nevada, Modoc Plateau
- Natural Habitat: Open forests, among rocks or shrubs from 600-9000'
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