Taxon Details
Helianthus winteri
Winter's sunflower
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© 2014 Chris Winchell |
© 2014 Chris Winchell |
© 2014 Chris Winchell |
Taxon Summary:
Helianthus winteri, commonly known as Winter's sunflower, is a perennial shrub in the Asteraceae that is found only in California. It occurs within Cismontane woodland, and Valley and foothill grassland, growing at elevations from 125 to 460 meters. Helianthus winteri is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Helianthus winteri J.C. Stebbins |
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Common Name: Winter's sunflower |
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| Family: | Asteraceae | |
| Element Code: | PDAST4N260 | |
| USDA Plants Symbol: | ||
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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.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G2? |
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State Rank: |
S2? |
| Other Status: | BLM_S; SB_CalBG/RSABG |
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CRPR Changes: added to 1B.2 on 2014-10-15 |
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| Add Date: | 2014-10-15 |
| Date Edited: | 2023-12-05 |
| Lifeform: perennial shrub | ||||||||||||||
Blooming Period: Jan-Dec
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Elevation:
125 - 460 meters 410 - 1510 feet |
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General Habitats:
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| Microhabitat Details: relatively steep south-facing slopes | ||||||||||||||
Microhabitat:
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Notes: See Aliso 31:19-24 (2013) for original description, and International Journal of Plant Sciences 174(7):1079-1089 (2013) for life history information. |
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Threats: Threatened by grazing, agriculture, road maintenance, and habitat loss. |
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Taxonomy: First year growth nearly indistinguishable from H. annuus; mostly distinguished from H. annuus in having woody stems, year-round blooming period, and dark purplish buds and phyllaries. |
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| Threat List Total: | 6 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 14 | 25 % |
| THREAT LIST: | ||
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| Foot traffic/trampling | 6 | 10% |
| Grazing | 4 | 7% |
| Agriculture | 4 | 7% |
| Road/trail construction/maint. | 2 | 3% |
| Non-native plant impacts | 2 | 3% |
| Recreational use (non-ORV) | 1 | 1% |
| Total Occurrences: | 55 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 11 | 36 | 4 | 1 | 0 | 3 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 55 | ||||
| Presence: | |||||
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| Presumed Extant | 55 | ||||
| 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) Fresno (FRE), Tulare (TUL) |
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Quads: Name (Quad Code) Auckland (3611951), Ivanhoe (3611942), Orange Cove North (3611963), Orange Cove South (3611953), Pine Flat Dam (3611973), Stokes Mtn. (3611952), Tucker Mtn. (3611962), Wahtoke (3611964), Woodlake (3611941) |
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Notes:
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Presumed Extant
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