|
|
Scientific Name: Blepharizonia plumosa (Kell.) Greene |
||
|
Common Name: big tarplant |
||
| Family: | Asteraceae | |
| Element Code: | PDAST1C011 | |
| USDA Plants Symbol: | BLPL | |
|
Synonyms/Other Names: |
||
| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G1G2 |
|
State Rank: |
S1S2 |
| Other Status: | SB_CalBG/RSABG |
|
CRPR Changes: |
|
| Add Date: | 1994-01-01 |
| Date Edited: | 2021-08-25 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Jul-Oct
|
||||||||||||||
|
Elevation:
30 - 505 meters 100 - 1655 feet |
||||||||||||||
General Habitats:
|
||||||||||||||
| Microhabitat Details: | ||||||||||||||
Microhabitat:
|
||||||||||||||
|
Notes: Historical occurrences probably extirpated by agriculture and non-native plants. Seriously threatened by urbanization; also threatened by disking, residential development, and non-native plants. See B. plumosa ssp. plumosa in TJM (1993). See Proceedings of the California Academy of Sciences I 5:49 (1873) for original description, Systematic Botany 26(1):184-194 (2001) for elevation to specific rank, and Madroño 48(4):272-285 (2001) for demography and population biology. |
|
|
Threats: |
|
|
Taxonomy: |
|
| Threat List Total: | 9 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 25 | 47 % |
| THREAT LIST: | ||
|---|---|---|
| Grazing | 13 | 24% |
| Development | 11 | 20% |
| Non-native plant impacts | 9 | 16% |
| Road/trail construction/maint. | 5 | 9% |
| Disking | 4 | 7% |
| Erosion/runoff | 3 | 5% |
| ORV activity | 2 | 3% |
| Other | 2 | 3% |
| Improper burning regime | 1 | 1% |
| Total Occurrences: | 53 | ||||
| Element Occurrence Ranks: | |||||
|---|---|---|---|---|---|
| A | B | C | D | X | U |
| 6 | 24 | 4 | 1 | 2 | 16 |
| Occurrence Status: | |||||
|---|---|---|---|---|---|
| Historical >20 Years | 37 | ||||
| Recent <=20 Years | 16 | ||||
| Presence: | |||||
|---|---|---|---|---|---|
| Presumed Extant | 51 | ||||
| Possibly Extirpated | 2 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
|
States: Name (Code) California (CA) |
|||||||||||||
|
California Counties and Islands: Name (Code) Alameda (ALA), Contra Costa (CCA), San Joaquin (SJQ), Solano (SOL)*, Stanislaus (STA) |
|||||||||||||
|
Quads: Name (Quad Code) Altamont (3712166), Antioch North (3812117)(?), Antioch South (3712187), Benicia (3812212), Brentwood (3712186), Byron Hot Springs (3712176), Clayton (3712188), Copper Mtn. (3712143), Honker Bay (3812118)(?), Midway (3712165), Patterson (3712142), Stockton West (3712183), Tracy (3712164), Union Island (3712174), Walnut Creek (3712281)(?), Westley (3712152)* |
|||||||||||||
Notes:
|
|||||||||||||
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel