Species Details

Trifolium polyodon

Pacific Grove clover

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Scientific Name:
Trifolium polyodon Greene
Common Name:
Pacific Grove clover
Family: Fabaceae
Element Code: PDFAB402H0
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Apr-Jun(Jul)
JFMAMJJASOND
Elevation:
5 - 425 meters
15 - 1395 feet
General Habitats:
  • Closed-cone coniferous forest
  • Coastal prairie
  • Meadows and seeps
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Granitic (sometimes)
  • Mesic
Notes:
Seriously threatened by urbanization, recreation, foot traffic, and trampling. Potentially threatened by non-native plants. A synonym of T. variegatum (phase 4) in The Jepson Manual, but appears to be distinct. See Pittonia 3:215 (1897) for original description.
Threats:
Taxonomy:
Threat List Total: 9
Total EOs % of EOs
EOs with Threat Listed: 15 71 %
THREAT LIST:
Non-native plant impacts 9 42%
Development 5 23%
Grazing 5 23%
Other 4 19%
Recreational use (non-ORV) 2 9%
Total Occurrences: 21
Element Occurrence Ranks:
A B C D X U
1 7 5 1 0 7
Occurrence Status:
Historical >20 Years 11
Recent <=20 Years 10
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)
Marin (MRN), Monterey (MNT), Santa Cruz (SCR), Sonoma (SON)
Quads: Name (Quad Code)
Big Basin (3712222), Drakes Bay (3812218), Felton (3712211), Laurel (3712118), Monterey (3612158), Mt. Carmel (3612147), Petaluma (3812226), Petaluma River (3812225), Seaside (3612157), Spreckels (3612156)
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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