Species Details
Helianthus inexpectatus
Newhall sunflower
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© 2012 Anuja Parikh and Nathan Gale |
© 2012 Anuja Parikh and Nathan Gale |
© 2012 Anuja Parikh and Nathan Gale |
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Scientific Name: Helianthus inexpectatus D.J. Keil & Elvin |
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Common Name: Newhall sunflower |
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| Family: | Asteraceae | |
| Element Code: | PDAST4N250 | |
| USDA Plants Symbol: | ||
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: added to 1B.1 on 2010-08-16 |
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| Add Date: | 2010-08-16 |
| Date Edited: | 2024-02-06 |
| Lifeform: perennial rhizomatous herb | ||||||||||||||
Blooming Period: Aug-Oct
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Elevation:
305 - 305 meters 1000 - 1000 feet |
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General Habitats:
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| Microhabitat Details: freshwater | ||||||||||||||
Microhabitat:
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Notes: Known from a single occurrence of fewer than 10 individuals. See Aliso 28:59-62 (2010) for original description. |
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Threats: Potentially threatened by development, hydrological alterations, habitat alteration and loss, urban runoff, non-native plants, recreational activities, and foot traffic. Possibly threatened by air pollution and pollination reduction. |
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Taxonomy: |
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| Threat List Total: | 4 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 100 % |
| THREAT LIST: | ||
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| Altered flood/tidal/hydrologic regime | 1 | 100% |
| Development | 1 | 100% |
| Non-native plant impacts | 1 | 100% |
| Over-collecting/poaching | 1 | 100% |
| Total Occurrences: | 1 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 1 | 0 | 0 | 0 |
| Occurrence Status: | |||||
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| Historical >20 Years | 1 | ||||
| Recent <=20 Years | 0 | ||||
| Presence: | |||||
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| Presumed Extant | 1 | ||||
| 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) Los Angeles (LAX) |
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Quads: Name (Quad Code) Newhall (3411845) |
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Notes:
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Presumed Extant
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