Rarity Status  |
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Occurrence Data from DFG
California Natural Diversity Database  |
- Total # of Known Element Occurrences:
21
- Element Occurrence Ranks:
Population Status:
Historic
>20 yrs |
Recent
<=20 yrs |
| 5 |
16 |
- Presence:
| Present Extant |
Possibly Extirpated |
Extirpated |
| 21 |
0 |
0 |
|
|
Notes  |
-
Threatened by carbonate mining, non-native plants, powerline maintenance, and vehicles. See Brittonia 32: 70-102 (1980) for original description, Harvard Papers in Botany 9(1): 144 (2004) for revised nomenclature, and Phytologia 66(4): 386-387 (1989) for taxonomic treatment.
-
To submit rare plant observation data, use the
CNDDB field survey form.
Please see also the CNPS
Rare Plant Data page.
- Date Added:
1988-01-01
- Last Update:
2013-04-30
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