Species Details
Malacothrix squalida
island malacothrix
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Scientific Name: Malacothrix squalida Greene |
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Common Name: island malacothrix |
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| Family: | Asteraceae | |
| Element Code: | PDAST660K0 | |
| USDA Plants Symbol: | MASQ | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FE (1997-07-31) |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2021-05-26 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-Jul
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Elevation:
15 - 200 meters 50 - 655 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Last seen on SCZ Isl. in 1968 and on ANA Isl. in 1986. Threatened by feral herbivores on SCZ Isl., and by seabird-caused erosion on ANA Isl. Field surveys needed; 1989 surveys on ANA Isl. were unsuccessful. See Bulletin of the California Academy of Sciences 2:152 (1886) for original description, and Madroño 44(3):223-244 (1997) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 2 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 2 | 50 % |
| THREAT LIST: | ||
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| Erosion/runoff | 2 | 50% |
| Non-native plant impacts | 1 | 25% |
| Total Occurrences: | 4 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 4 |
| Occurrence Status: | |||||
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| Historical >20 Years | 3 | ||||
| Recent <=20 Years | 1 | ||||
| Presence: | |||||
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| Presumed Extant | 4 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Santa Barbara (SBA), Ventura (VEN) |
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Quads: Name (Quad Code) Anacapa Island (3311983), Santa Cruz Island C (3311985) |
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Notes:
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Presumed Extant
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