Species Details

Blennosperma bakeri

Sonoma sunshine

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Classification

Scientific Name: Blennosperma bakeri Heiser
Common Name: Sonoma sunshine
Family:	Asteraceae
Element Code:	PDAST1A010
USDA Plants Symbol:	BLBA
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	FE (1991-12-02)
State List:	CE (1992-02-01)
Global Rank:	G1
State Rank:	S1
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-May

Elevation:
10 - 110 meters
35 - 360 feet

General Habitats:

Valley and foothill grassland (mesic)
Vernal pools

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by residential development, urbanization, grazing, and agriculture. Possibly threatened by non-native plants, foot traffic and road maintenance. See Madroño 9(3):103-104 (1947) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	15
	Total EOs	% of EOs
EOs with Threat Listed:	20	83 %
Non-native plant impacts	11	45%
Agriculture	10	41%
Development	10	41%
Grazing	10	41%
Disking	7	29%
ORV activity	4	16%
Other	4	16%
Vandalism/dumping/litter	4	16%
Road/trail construction/maint.	3	12%
Altered flood/tidal/hydrologic regime	3	12%
Recreational use (non-ORV)	2	8%
Biocides	1	4%
Erosion/runoff	1	4%
Wood cutting or brush clearing	1	4%
Improper burning regime	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					24
A	B	C	D	X	U
0	9	6	1	5	3

Occurrence Status:
Historical >20 Years	9
Recent <=20 Years	15

Presence:
Presumed Extant	19
Possibly Extirpated	2
Presumed Extirpated	3

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Mendocino (MEN), Sonoma (SON)

Quads: Name (Quad Code)
Cotati (3812236), Glen Ellen (3812235), Healdsburg (3812257), Laughlin Range (3912333), Santa Rosa (3812246), Sears Point (3812224), Sebastopol (3812247), Sonoma (3812234), Two Rock (3812237)

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

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CNPS Rare Plant Inventory