Species Details

Helianthus winteri

Winter's sunflower

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Classification

Scientific Name: Helianthus winteri J.C. Stebbins
Common Name: Winter's sunflower
Family:	Asteraceae
Element Code:	PDAST4N260
USDA Plants Symbol:
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2?
State Rank:	S2?
Other Status:	BLM_S; SB_CalBG/RSABG
CRPR Changes: added to 1B.2 on 2014-10-15
Add Date:	2014-10-15
Date Edited:	2023-12-05

Ecology and Life History

Lifeform: perennial shrub

Blooming Period: Jan-Dec

Elevation:
125 - 460 meters
410 - 1510 feet

General Habitats:

Cismontane woodland
Valley and foothill grassland

Microhabitat Details: relatively steep south-facing slopes

Microhabitat:

Granitic
Openings
Roadsides (often)
Rocky (often)
Slopes

Notes

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.

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	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%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					55
A	B	C	D	X	U
11	36	4	1	0	3

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	55

Presence:
Presumed Extant	55
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

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)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

Selected References

CNPS Status Review:

CRPR List Addition on 2014-10-15