Taxon Report
Helianthus winteri J.C. StebbinsWinter's sunflower |
 © 2014 Chris Winchell |
Classification
|
Scientific Name: |
Helianthus winteri J.C. Stebbins |
|
Common Name: |
Winter's sunflower |
| Family: | Asteraceae |
| Element Code: | PDAST4N260 |
| USDA Plants Symbol: | |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | perennial shrub |
| Blooming Period: Jan-Dec | Jan-Dec |
| Elevation: | 125-460 (410-1510) |
| General Habitats: | Cismontane woodland, Valley and foothill grassland |
| Microhabitat: | Granitic, Openings, Roadsides (often), Rocky (often), Slopes |
| Microhabitat Details: | relatively steep south-facing slopes |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2? |
|
State Rank: |
S2? |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 55 |
| Element Occurrence Ranks: | |
| Excellent (A) | 11 |
| Good (B) | 36 |
| Fair (C) | 4 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 3 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Fresno (FRE), Tulare (TUL) | |
| 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) | |
Threat List Data from the CNDDB
| Threat List Total: | 6 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 14 | 25 % | |
| 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% |
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. |
|
Threats: |
|
Threatened by grazing, agriculture, road maintenance, and habitat loss. |
|
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. |
Selected References
| CRPR List Addition on 2014-10-15 |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].