Rarity Status  |
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Occurrence Data from DFG
California Natural Diversity Database  |
- Total # of Known Element Occurrences:
30
- Element Occurrence Ranks:
Population Status:
Historic
>20 yrs |
Recent
<=20 yrs |
| 9 |
21 |
- Presence:
| Present Extant |
Possibly Extirpated |
Extirpated |
| 30 |
0 |
0 |
|
|
Notes  |
-
Threatened by development, foot traffic, and non-native plants. See Bulletin of the Torrey Botanical Club 30(9):495 (1903) for original description, and Annals of the Missouri Botanical Garden 52(2):214 (1965) for revised nomenclature.
-
To submit rare plant observation data, use the
CNDDB field survey form.
Please see also the CNPS
Rare Plant Data page.
- Date Added:
2001-01-01
- Last Update:
2010-03-15
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Location  |
- Elevation:
10 - 105 meters
- California Endemic:
yes
- States:
California
- California Counties and Islands:
name (code)
Contra Costa (CCA), Lake (LAK), Mendocino (MEN), Marin (MRN), Sonoma (SON)
- Quads:
name (DWR code) USGS code
Richmond (466A)? 37122H3, Tomales (485B) 38122B8, Drakes Bay (485C) 38122A8, Valley Ford (502C) 38122C8, Duncans Mills (503A) 38123D1, Arched Rock (503B) 38123D2, Bodega Head (503D) 38123C1, Stewarts Point (520B) 38123F4, Plantation (520D) 38123E3, Middletown (533D) 38122G5, Point Arena (537B) 38123H6, Saunders Reef (537C) 38123G6, Gualala (537D) 38123G5, Albion (553A) 39123B7, Mendocino (569D) 39123C7
- Notes:
| Definitions of codes preceding a county and/or quad: |
| * |
|
Presumed extirpated |
| ? |
| Uncertain about distribution or identity
|
| ?* |
| Uncertain about distribution, but presumed extirpated if once present
|
| (?) |
| Occurrence confirmed, but possibly extirpated
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Species may be present in other areas where conditions are favorable.
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