Rarity Status  |
|
|
Occurrence Data from DFG
California Natural Diversity Database |
- Total # of Known Element Occurrences:
37
- Element Occurrence Ranks:
Population Status:
Historic
>20 yrs |
Recent
<=20 yrs |
| 17 |
20 |
- Presence:
| Present Extant |
Possibly Extirpated |
Extirpated |
| 20 |
8 |
9 |
|
|
| Notes |
-
All extant CCA Co. occurrences (465B, 466A) are introduced; nearly half have failed. Last remaining natural population in the S.F. Bay Area extirpated by development in 1993. Seriously threatened by urbanization, agriculture, non-native plants, and lack of appropriate ecological disturbance. See Fremontia 5(4):15-16 (1978) for species account.
-
To submit rare plant observation data, use the
CNDDB field survey form.
Please see also the CNPS
Rare Plant Data page.
- Date Added:
1974-01-01
- Last Update:
2010-03-15
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|
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| Location |
- Elevation:
10 - 220 meters
- California Endemic:
yes
- States:
California
- California Counties and Islands:
name (code)
Alameda (ALA) *, Contra Costa (CCA) *, Monterey (MNT), Marin (MRN) *, Santa Cruz (SCR), Solano (SOL)
- Quads:
name (DWR code) USGS code
Watsonville East (386B) 36121H6, Prunedale (386C) 36121G6, Watsonville West (387A) 36121H7, Soquel (387B) 36121H8, Santa Cruz (387E) 36122H1, Laurel (407C) 37121A8, Felton (408D) 37122A1, Hayward (447A)* 37122F1, Briones Valley (465B) 37122H2, Richmond (466A)* 37122H3, Oakland West (466D)* 37122G3, San Rafael (467A)* 37122H5, Mare Island (483D)* 38122A3
- 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
|
|
Species may be present in other areas where conditions are favorable.
|
|
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Presumed Extant
Presumed Extirpated or Unknown