Taxon Report

Streptanthus albidus Greene ssp. albidus

Metcalf Canyon jewelflower

Print Report


© 2015 Aaron Schusteff

  Classification

Scientific Name:
Streptanthus albidus Greene ssp. albidus
Common Name:
Metcalf Canyon jewelflower
Family: Brassicaceae
Element Code: PDBRA2G011
USDA Plants Symbol: STALA
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: Apr-Jul Apr-Jul
Elevation: 45-800 (150-2625)
General Habitats: Valley and foothill grassland
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 13
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 7
   Fair (C) 2
   Poor (D) 2
   None (X) 1
   Unknown (U) 1
California Endemic:  True
California Counties and Islands: Name (Code)
Santa Clara (SCL)
Quads: Name (Quad Code)
Lick Observatory (3712136), Morgan Hill (3712126), San Jose East (3712137), Santa Teresa Hills (3712127)*

Threat List Data from the CNDDB

Threat List Total: 10
EOs with Threat Listed: Total EOs % of EOs
13 100 %
Non-native plant impacts 11 84%
Development 6 46%
Grazing 6 46%
Road/trail construction/maint. 6 46%
Other 2 15%
Biocides 1 7%
ORV activity 1 7%
Mining 1 7%
Foot traffic/trampling 1 7%
Vandalism/dumping/litter 1 7%

Notes

Threatened by residential development, road construction, vehicles, and non-native plants. A synonym of S. glandulosus ssp. albidus in TJM 2; further study is underway to determine its relationship to the S. glandulosus complex. See Pittonia 1:62 (1887) for original description, MadroƱo 14(7):217-227 (1958) for taxonomic treatment, and Systematic Botany 19(4):557-574 (1994) for discussion of S. glandulosus complex.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].