Species Details

Perideridia gairdneri ssp. gairdneri

Gairdner's yampah

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Photo of Perideridia gairdneri ssp. gairdneri
©2007 Neal Kramer
Scientific Name:
Perideridia gairdneri (H. & A.) Math. ssp. gairdneri
Common Name:
Gairdner's yampah
Family: Apiaceae
Element Code: PDAPI1N062
USDA Plants Symbol: PEGAG
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Jun-Oct
0 - 610 meters
0 - 2000 feet
General Habitats:
  • Broadleafed upland forest
  • Chaparral
  • Coastal prairie
  • Valley and foothill grassland
  • Vernal pools
Microhabitat Details:
  • Vernally Mesic
Endangered in the southern portion of its range; status of occurrences uncertain. Can be relatively common locally, especially in northern counties. Is plant extant in SMT Co.? Threatened by agriculture, grazing, non-native plants, habitat alteration, and urbanization. See University of California Publications in Botany 55:1-74 (1969) for taxonomic treatment.
Total Occurrences: 0
Element Occurrence Ranks:
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Del Norte (DNT), Kern (KRN), Marin (MRN), Mendocino (MEN), Monterey (MNT), San Luis Obispo (SLO), San Mateo (SMT)(?), Santa Clara (SCL), Santa Cruz (SCR), Solano (SOL), Sonoma (SON)
Quads: Name (Quad Code)
Ano Nuevo (3712213), Bear Mountain (3511826), Burro Mountain (3512173), Cambria (3512151), Cape San Martin (3512184), Drakes Bay (3812218), Elmira (3812138), Franklin Point (3712223), Healdsburg (3812257), Hiouchi (4112471), La Honda (3712233), Mt. Carmel (3612147), Pigeon Point (3712224), Plantation (3812353), Point Arena (3812386), Purdys Gardens (3912311), San Rafael (3712285), Santa Cruz (3612281), Spreckels (3612156), Tomales (3812228), Two Rock (3812237), Watsonville East (3612186), Willits (3912343)
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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