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Brodiaea santarosae
Santa Rosa Basalt brodiaea is a rare perennial bulb from southern California, known only from a few populations on ancient basalt soils. It is a species, not a genus, and is best left in its native habitat rather than grown in gardens.
Brodiaea santarosae is a rare Brodiaea species known by the common name Santa Rosa brodiaea and Santa Rosa Basalt brodiaea. It is endemic to southern California, mostly in the region around the junction of Riverside and San Diego Counties and limited to ancient basaltic soils. There are only five known populations. It was once thought to be an intergrade of Brodiaea filifolia and Brodiaea orcuttii, but measurements found this to be false. It was described as a new species in 2006.
It is on the California Native Plant Society's list of rare and endangered species.
A concentration of B. santarosae can specifically be found in the Santa Rosa Basalt area which lies in Riverside County which is below San Bernardino County and above San Diego County. The flower grows between May and June in areas with elevation between 510 and 1050 meters. It is resilient to low water conditions and can even grow in disturbed habitats whereas the B. filifolia and B. orcuttii grow in habitats that are more wet. A loss of native habitat through the erosion of the Santa Rosa Basalt which has decreased by 97% is the main cause for its endangerment. There is approximately
Appendage brodiaea · California brodiaea · Crown brodiaea · Harvest brodiaea · Threadleaf brodiaea · Kaweah brodiaea · Chaparral brodiaea · San Clemente Island brodiaea · Vernalpool brodiaea · Dwarf Brodiaea · Orcutt's brodiaea · Chinese Camp brodiaea
Text excerpted from the Wikipedia article Brodiaea santarosae 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.
