Taxon Report

Brodiaea rosea (Greene) Baker ssp. vallicola R.E. Preston

valley brodiaea

Print Report


© 2011 Steven Perry

Taxon Summary

Brodiaea rosea ssp. vallicola, commonly known as valley brodiaea, is a perennial bulbiferous herb in the Themidaceae that is found only in California. It occurs within Valley and foothill grassland, and Vernal pools, growing at elevations from 10 to 335 meters. Brodiaea rosea ssp. vallicola is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

  Classification
Scientific Name:
 Brodiaea rosea (Greene) Baker ssp. vallicola R.E. Preston
Common Name:
 valley brodiaea
Family: Themidaceae
Element Code: PMLIL0C0K2
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial bulbiferous herb
Blooming Period: Apr-May(Jun) Apr-May(Jun)
Elevation: 10-335 (35-1100)
General Habitats: Valley and foothill grassland, Vernal pools
Microhabitat: Alluvial Terraces, Gravelly, Sandy
Microhabitat Details: Silt

Conservation Status
CA Rare Plant Rank: 4.2
Global Rank: G4G5T3
State Rank:
 S3
State List: None
Fed List: None
Other Status:
CRPR Changes:
  • added to 4.2 on 2019-01-07

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), Calaveras (CAL), Nevada (NEV), Placer (PLA), Sacramento (SAC), San Joaquin (SJQ), Sutter (SUT), Yuba (YUB)
Quads: Name (Quad Code)
Buffalo Creek (3812152), Camp Far West (3912113), Carbondale (3812141), Carmichael (3812153), Cherokee (3912165), Chico (3912167), Citrus Heights (3812163), Clements (3812121), Folsom (3812162), Goose Creek (3812131), Hamlin Canyon (3912166), Honcut (3912135), Jenny Lind (3812017), Lincoln (3812183), Nord (3912178), Pleasant Grove (3812174), Rio Linda (3812164), Roseville (3812173), Sacramento East (3812154), Salt Spring Valley (3812016), Shippee (3912156), Sloughhouse (3812142), Smartville (3912123), Valley Springs SW (3812018), Wallace (3812028)

Threat List Data from the CNDDB

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

Notes
Threatened by urbanization. Previously assigned to B. coronaria; differentiated by staminodes strongly inrolled, tapering to an apex vs. staminodes flat to incurved, uniformly wide from base to obtuse apex in B. coronaria. Similar to B. rosea ssp. rosea, but with perianth always violet, most floral characters longer, and with a disjunct distribution in non-serpentine habitats along the eastern edge of the Great Valley. See Systematic Botany 38(4):1012-1028 (2013) for original description.
Threats:
Taxonomy:

Selected References

Proposed Addition to CRPR 4.2, G5T3 / S3 (2019)
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].