Species Details

Eriastrum harwoodii

Harwood's eriastrum

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Classification

Scientific Name: Eriastrum harwoodii (T.T. Craig) D. Gowen
Common Name: Harwood's eriastrum
Family:	Polemoniaceae
Element Code:	PDPLM030B1
USDA Plants Symbol:	ERHA5
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; SB_USDA
CRPR Changes: added to 1B.2 on 2008-07-22
Add Date:	2008-07-22
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-Jun

Elevation:
125 - 915 meters
410 - 3000 feet

General Habitats:

Desert dunes

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by mining, non-native plants, and vehicles. Potentially threatened by solar energy development. Possibly threatened by grazing and trampling. Not in TJM (1993). See Bulletin of the Torrey Botanical Club 61: 345-409 (1934) for original description, and Madrono 55 (1):82-87 (2008) for revised taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	8
	Total EOs	% of EOs
EOs with Threat Listed:	39	49 %
ORV activity	35	43%
Non-native plant impacts	25	31%
Development	23	28%
Grazing	10	12%
Vandalism/dumping/litter	5	6%
Other	1	1%
Erosion/runoff	1	1%
Foot traffic/trampling	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					80
A	B	C	D	X	U
4	19	9	1	0	47

Occurrence Status:
Historical >20 Years	6
Recent <=20 Years	74

Presence:
Presumed Extant	80
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Imperial (IMP), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)

Quads: Name (Quad Code)
Arica Mountains (3411418), Borrego Mountain SE (3311611), Cadiz Lake (3411534), Cadiz Lake NW (3411544), Cadiz Summit (3411554), Cadiz Valley SE (3411513), Calumet Mine (3411545), Calumet Mountains (3411535), Chubbuck (3411533), Clark Lake (3311633), Clarks Pass (3411515), Cowhole Mountain (3511518), Crescent Peak (3511542), Crucero Hill (3511612), Danby Lake (3411521), Desert Hot Springs (3311685), East of Broadwell Lake (3411671), East of Granite Pass (3411511), East of Victory Pass (3311573), Glasgow (3411587), Indian Spring (3511527), Kelso Dunes (3411586), Kingston Peak (3511568), Martinez Mtn. (3311653), Milligan (3411532), Morongo Valley (3411615), New Dale (3411516), Old Dad Mtn. (3511517), Pinto Wells (3311584), Rice (3411417), Roosevelt Mine (3311457), Seventeenmile Point (3511528), Sidewinder Well (3311562), Skeleton Pass (3411553)

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 2008-07-22