CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record brodiaea_santarosae - Wed, Dec. 8, 2021, 23:52 ET b
Brodiaea santarosae
common nameSanta Rosa Basalt brodiaea
CalPhotos image
more photos
© 2007 lara hartley  Follow image link for photo data.
life form bulbiferous herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S1      ranking system key
global rank
G1     G1: Less than 6 occurrences OR less than 1,000 individuals OR less than 2,000 acres.
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (5):
Fallbrook (051A) 3311743, Margarita Peak (051B) 3311744, Murrieta (068C) 3311752, Sitton Peak (069C) 3311754, Wildomar (069D) 3311753
quad data info

Counties, states, regions:
Riverside (RIV), San Diego (SDG)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Valley and foothill grassland (VFGrs)/basaltic
blooming period May-Jun  
elevation range565 - 1045 meters
Previously CRPR 3; plants were known as possible hybrids between B. filifolia and B. orcuttii, but are now recognized as distinct. Research into the evolutionary origin of B. santarosae is currently underway. Possibly threatened by development. Forms sterile hybrids with B. terrestris ssp. kernensis. Not in TJM (1993). See Madroņo 54(2):187-198 (2007) for original description.
full nameBrodiaea santarosae T. Chester, W. Armstrong & K. Madore
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PMLIL0C0G0
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Wed, Dec. 8, 2021 from

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