Berberis pinnata subsp. pinnata
Shrubs, self-supporting, 0.3-1.6 m. Leaflets thin but ± rigid; lateral leaflet blades ovate to broadly lanceolate, margins undulate or crispate, marginal teeth tipped with spines to 1.2-3 × 0.2-0.3 mm. Inflorescences 2-5 cm.
Phenology: Flowering winter–spring (Feb–May).
Habitat: Exposed rocky openings in woods and shrubland
Elevation: 0-1200 m
Calif., Oreg., Mexico (n Baja California)
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