Species Details

Lewisia congdonii

Congdon's lewisia

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Photo of Lewisia congdonii
© 2010 Aaron Schusteff
Photo of Lewisia congdonii
© 2010 Aaron Schusteff
Photo of Lewisia congdonii
© 2017 John Doyen
Scientific Name:
Lewisia congdonii (Rydb.) S. Clay
Common Name:
Congdon's lewisia
Family: Montiaceae
Element Code: PDPOR04040
USDA Plants Symbol: LECO4
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Apr-Jun
JFMAMJJASOND
Elevation:
500 - 2800 meters
1640 - 9185 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
  • Lower montane coniferous forest
  • Upper montane coniferous forest
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Granitic (sometimes)
  • Mesic
  • Metamorphic (sometimes)
  • Rocky
Notes:
Known from approximately ten occurrences in the canyons of the Kings and Merced rivers. Threatened by exotic plant control, illegal dumping, and road maintenance. See North American Flora 21:328 (1932) for original description, and Fremontia 25(1):15-19 (1997) for genetic study of relationship to L. cantelovii and L. serrata.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 2 20 %
THREAT LIST:
Road/trail construction/maint. 2 20%
Biocides 1 10%
Erosion/runoff 1 10%
Mining 1 10%
Over-collecting/poaching 1 10%
Total Occurrences: 10
Element Occurrence Ranks:
A B C D X U
2 0 0 0 0 8
Occurrence Status:
Historical >20 Years 8
Recent <=20 Years 2
Presence:
Presumed Extant 10
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Fresno (FRE), Mariposa (MPA)
Quads: Name (Quad Code)
El Portal (3711967), Hume (3611878), Wawona (3711956), Wren Peak (3611877)
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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