Species Details

Leptosyne hamiltonii

Mt. Hamilton coreopsis

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Photo of Leptosyne hamiltonii
©2012 Aaron Schusteff
Photo of Leptosyne hamiltonii
©2012 Aaron Schusteff
Photo of Leptosyne hamiltonii
©2012 Aaron Schusteff
Lifeform: annual herb
Blooming Period: Mar-May
JFMAMJJASOND
Elevation:
550 - 1300 meters
1805 - 4265 feet
General Habitats:
  • Cismontane woodland (rocky)
Microhabitat Details:
Microhabitat:
Notes:
Known only from the Mt. Hamilton Range. See Botanical Gazette 41:323-324 (1906) for original description, and MadroƱo 4(7):214-215 (1938) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 5 24 %
THREAT LIST:
Grazing 3 14%
Non-native plant impacts 1 4%
Vandalism/dumping/litter 1 4%
Erosion/runoff 1 4%
Feral pigs 1 4%
Total Occurrences: 21
Element Occurrence Ranks:
A B C D X U
12 6 0 0 0 3
Occurrence Status:
Historical >20 Years 18
Recent <=20 Years 3
Presence:
Presumed Extant 21
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Alameda (ALA), Santa Clara (SCL), Stanislaus (STA)
Quads: Name (Quad Code)
Cedar Mtn. (3712155), Isabel Valley (3712135), Lick Observatory (3712136), Lone Tree Creek (3712154), Mississippi Creek (3712124), Mt. Stakes (3712134), Solyo (3712153)
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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