Taxon Report

Brodiaea sierrae R.E. Preston

Sierra foothills brodiaea

Print Report


© 2006 George W. Hartwell

Taxon Summary

Brodiaea sierrae, commonly known as Sierra foothills brodiaea, is a perennial bulbiferous herb in the Themidaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Lower montane coniferous forest, growing at elevations from 50 to 980 meters. Brodiaea sierrae is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

  Classification
Scientific Name:
 Brodiaea sierrae R.E. Preston
Common Name:
 Sierra foothills brodiaea
Family: Themidaceae
Element Code: PMLIL0C0J0
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial bulbiferous herb
Blooming Period: May-Aug May-Aug
Elevation: 50-980 (165-3215)
General Habitats: Chaparral, Cismontane woodland, Lower montane coniferous forest
Microhabitat: Gabbroic, Serpentine (usually)
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 4.3
Global Rank: G3
State Rank:
 S3
State List: None
Fed List: None
Other Status: SB_UCSC
CRPR Changes:
  • added to 4.3 on 2012-11-20

Occurrence Data from the CNDDB
Total Occurrences: 0
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 0

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Butte (BUT), Nevada (NEV), Placer (PLA), Yuba (YUB)
Quads: Name (Quad Code)
Bangor (3912144), Berry Creek (3912164), Challenge (3912142), Cherokee (3912165), Clipper Mills (3912152), Forbestown (3912153), French Corral (3912132), Grass Valley (3912121), Loma Rica (3912134), Nevada City (3912131), Oroville (3912155), Oroville Dam (3912154), Paradise East (3912175), Pulga (3912174), Rackerby (3912143), Rough And Ready (3912122), Smartville (3912123), Wolf (3912112)

Threat List Data from the CNDDB

Threat List Total: 0
EOs with Threat Listed: Total EOs % of EOs
0 0 %

Notes
Potentially threatened by vehicles, road maintenance, road widening, development, illegal dumping, urbanization, horticultural collecting, and hydrological alterations. Similar to, and previously included in B. californica; actually more similar to B. leptandra. See Novon 16:254-259 (2006) for original description.
Threats:
Taxonomy:

Selected References

Proposed Addition to Rank 4.3, G3 / S3 (2012)
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].