Species Details
Lewisia congdonii
Congdon's lewisia
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© 2010 Aaron Schusteff |
© 2010 Aaron Schusteff |
© 2017 John Doyen |
Species Description:
Lewisia congdonii, commonly known as Congdon's lewisia, is a perennial herb in the Montiaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Lower montane coniferous forest, Upper montane coniferous forest, and Valley and foothill grassland, growing at elevations from 500 to 2800 meters. Lewisia congdonii is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.|
Scientific Name: Lewisia congdonii (Rydb.) S. Clay |
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Common Name: Congdon's lewisia |
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| Family: | Montiaceae | |
| Element Code: | PDPOR04040 | |
| USDA Plants Symbol: | LECO4 | |
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Synonyms/Other Names: |
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| Name Status: |
JEP, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.3 |
| Fed List: | None |
| State List: | CR (1982-07-01) |
| Global Rank: | G2 |
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State Rank: |
S2 |
| Other Status: | SB_UCSC; USFS_S |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-Jun
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Elevation:
500 - 2800 meters 1640 - 9185 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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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. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 5 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 2 | 20 % |
| THREAT LIST: | ||
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| 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: | |||||
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| A | B | C | D | X | U |
| 2 | 0 | 0 | 0 | 0 | 8 |
| Occurrence Status: | |||||
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| Historical >20 Years | 8 | ||||
| Recent <=20 Years | 2 | ||||
| Presence: | |||||
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| Presumed Extant | 10 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Fresno (FRE), Mariposa (MPA) |
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Quads: Name (Quad Code) El Portal (3711967), Hume (3611878), Wawona (3711956), Wren Peak (3611877) |
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Notes:
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Presumed Extant
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