Species Details

Streptanthus callistus

Mt. Hamilton jewelflower

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Photo of Streptanthus callistus
© 2012 Aaron Schusteff
Scientific Name:
Streptanthus callistus Morrison
Common Name:
Mt. Hamilton jewelflower
Family: Brassicaceae
Element Code: PDBRA2G0A0
USDA Plants Symbol: STCA3
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G1
State Rank:
S1
Other Status:
CRPR Changes:
changed from 1B.3 to 1B.2 on 2024-01-19
Add Date: 1974-01-01
Date Edited: 2024-03-06
Lifeform: annual herb
Blooming Period: Apr-May
JFMAMJJASOND
Elevation:
600 - 790 meters
1970 - 2590 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
Microhabitat Details:
Microhabitat:
Notes:
Known only from the Mt. Hamilton Range. Possibly threatened by erosion and road construction and maintenance. See MadroƱo 4(7):205 (1938) for original description.
Threats:
Taxonomy:
Threat List Total: 3
Total EOs % of EOs
EOs with Threat Listed: 2 50 %
THREAT LIST:
Non-native plant impacts 2 50%
Road/trail construction/maint. 1 25%
Erosion/runoff 1 25%
Total Occurrences: 4
Element Occurrence Ranks:
A B C D X U
1 2 0 0 0 1
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 4
Presence:
Presumed Extant 4
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Santa Clara (SCL)
Quads: Name (Quad Code)
Isabel Valley (3712135), Mt. Sizer (3712125)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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