Taxon Details
Eriastrum densifolium ssp. sanctorum
Santa Ana River woollystar
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Taxon Summary:
Eriastrum densifolium ssp. sanctorum, commonly known as Santa Ana River woollystar, is a perennial herb in the Polemoniaceae that is found only in California. It occurs within Chaparral, and Coastal scrub (alluvial fans), growing at elevations from 91 to 610 meters. Eriastrum densifolium ssp. sanctorum is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Eriastrum densifolium (Benth.) Mason ssp. sanctorum (Mlkn.) Mason |
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Common Name: Santa Ana River woollystar |
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| Family: | Polemoniaceae | |
| Element Code: | PDPLM03035 | |
| USDA Plants Symbol: | ERDES | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FE (1987-09-28) |
| State List: | CE (1987-01-01) |
| Global Rank: | G4T1 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2021-12-09 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-Sep
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Elevation:
91 - 610 meters 300 - 2000 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Threatened by development, vehicles, foot traffic, sand and gravel mining, hydrological alterations, illegal dumping, road construction, flood control projects, and non-native plants. See Crossosoma 10(5):1-8 (1984) and Fremontia 13(3):19-20 (1985) for species accounts, Fremontia 17(3):20-21 (1989) for discussion of ecology, Systematic Botany 23(3):351-368 (1999) for taxonomic information, and Madroño 50(2):101-109 (2003) for reproductive biology. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 21 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 30 | 94 % |
| THREAT LIST: | ||
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| ORV activity | 15 | 46% |
| Development | 13 | 40% |
| Other | 10 | 31% |
| Altered flood/tidal/hydrologic regime | 9 | 28% |
| Foot traffic/trampling | 8 | 25% |
| Vandalism/dumping/litter | 7 | 21% |
| Recreational use (non-ORV) | 6 | 18% |
| Hybridization | 6 | 18% |
| Mining | 5 | 15% |
| Road/trail construction/maint. | 5 | 15% |
| Non-native plant impacts | 4 | 12% |
| Dam/Inundation | 4 | 12% |
| Grazing | 3 | 9% |
| Disking | 3 | 9% |
| Improper burning regime | 2 | 6% |
| Waterway bank protection/maintenance | 2 | 6% |
| Wood cutting or brush clearing | 1 | 3% |
| Surface water diversion | 1 | 3% |
| Agriculture | 1 | 3% |
| Biocides | 1 | 3% |
| Channelization | 1 | 3% |
| Total Occurrences: | 32 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 2 | 4 | 11 | 5 | 4 | 6 |
| Occurrence Status: | |||||
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| Historical >20 Years | 13 | ||||
| Recent <=20 Years | 19 | ||||
| Presence: | |||||
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| Presumed Extant | 28 | ||||
| Possibly Extirpated | 2 | ||||
| Presumed Extirpated | 2 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Orange (ORA)*, Riverside (RIV), San Bernardino (SBD) |
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Quads: Name (Quad Code) Black Star Canyon (3311776)*, Corona North (3311785), Devore (3411724)*, Fontana (3411714), Forest Falls (3411618), Keller Peak (3411721), Orange (3311777), Prado Dam (3311786), Redlands (3411712), Riverside West (3311784), San Bernardino North (3411723), San Bernardino South (3411713), Yorba Linda (3311787), Yucaipa (3411711) |
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Notes:
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Presumed Extant
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