Species Details

Allium sanbornii var. congdonii

Congdon's onion

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Photo of Allium sanbornii var. congdonii
© 2008 Steven Perry
Photo of Allium sanbornii var. congdonii
© 2012 Lynn Robertson
Photo of Allium sanbornii var. congdonii
© 2012 Lynn Robertson
Scientific Name:
Allium sanbornii A.W. Wood var. congdonii Jeps.
Common Name:
Congdon's onion
Family: Alliaceae
Element Code: PMLIL02211
USDA Plants Symbol: ALSAC
Synonyms/Other Names:
Lifeform: perennial bulbiferous herb
Blooming Period: Apr-Jul
Elevation:
300 - 1395 meters
985 - 4575 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
General Micro Habitat:
Micro Habitat:
  • Serpentinite
  • Volcanic
Notes:

Possibly threatened by non-native plants and vehicles. See Flora of California 1(6):275 (1922) by W.L. Jepson for original description, and MadroƱo 36(2):122-130 (1989) for taxonomic treatment.

Threats:


Taxonomy:
Other:
Total Occurrences: 0
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presence:
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
El Dorado (ELD), Mariposa (MPA), Nevada (NEV), Placer (PLA), Tuolumne (TUO)
Quads: Name (Quad Code)
Bear Valley (3712051), Colfax (3912018), Coulterville (3712062), Duncan Peak (3912025), Dutch Flat (3912027), Foresthill (3912017), Garden Valley (3812077), Georgetown (3812087), Greek Store (3912015), Groveland (3712072), Moccasin (3712073), Sonora (3712084), Tunnel Hill (3812086), Washington (3912037)
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.

Map

Presumed Extant
Counties   Quads