Brodiaea santarosae

Santa rosa basalt brodiaea, Santa Rosa Basalt Brodiaea

Family: Themidaceae · Type: perennial · Native

Conservation status: CNPS 1B.2

Santa rosa basalt brodiaea is a rare (CNPS 1B.2) California native perennial found in the Santa Ana Mountains in grassland habitats on soils derived from Santa Rosa basalt at elevations of 580 to 1,045 meters. Flowering from May to June, this plant produces violet flowers with ascending perianth lobes 15 to 30 millimeters long, creating delicate clusters atop slender scapes. Growing with erect stems 9 to 36 centimeters tall, it emerges from underground corms in open grassland settings. Its flowers feature distinctive white to lavender staminodes and elegant violet perianth segments that rise gracefully above narrow linear leaves. The plant's intricate floral structure includes filaments 2 to 8 millimeters long supporting delicate anthers in a complex reproductive arrangement.

Habitat: Grassland, on soils derived from Santa Rosa basalt

Bloom period: May-Jun

Elevation: 580-1045 m

Bioregions: PR (Santa Ana Mtns).

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.