Eriastrum ertterae

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Scientific Name: Eriastrum ertterae D. Gowen
Common Name: Lime Ridge eriastrum
Family:	Polemoniaceae
Element Code:	PDPLM030F0
USDA Plants Symbol:	ERER3
Synonyms/Other Names:

Lifeform: annual herb

Blooming Period: Jun-Jul

Elevation:
200 - 290 meters
655 - 950 feet

General Habitats:

Microhabitat Details: sometimes semi-alkaline

Microhabitat:

Notes: Known only from the Lime Ridge area. Potentially threatened by recreational activities, electric transmission tower maintenance, and non-native plants. Similar to E. hooveri. See Journal of the Botanical Research Institute of Texas 7(1):21-24 (2013) for original description.
Threats:
Taxonomy:

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	2	100 %
Foot traffic/trampling	2	100%
Insufficient population/stand size	2	100%
Non-native plant impacts	2	100%
Recreational use (non-ORV)	2	100%
Wood cutting or brush clearing	1	50%
Other	1	50%

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	2

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Contra Costa (CCA)

Quads: Name (Quad Code)
Clayton (3712188)

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

Presumed Extant

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CNPS Status Review:

CRPR List Addition on 2013-12-19