Species Details

Eriastrum ertterae

Lime Ridge eriastrum

  View Report   Copy Link Calflora eFlora CCH CalPhotos iNaturalist
Photo of Eriastrum ertterae
© 2013 John Doyen

Species Description:

Eriastrum ertterae, commonly known as Lime Ridge eriastrum, is a annual herb in the Polemoniaceae that is found only in California. It occurs within Chaparral (edges, and openings), growing at elevations from 200 to 290 meters. Eriastrum ertterae is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Lifeform: annual herb
Blooming Period: Jun-Jul
JFMAMJJASOND
Elevation:
200 - 290 meters
655 - 950 feet
General Habitats:
  • Chaparral (edges, openings)
Microhabitat Details: sometimes semi-alkaline
Microhabitat:
  • Alkaline (sometimes)
  • Sandy
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 Total: 6
Total EOs % of EOs
EOs with Threat Listed: 2 100 %
THREAT LIST:
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%
Total Occurrences: 2
Element Occurrence Ranks:
A B C D X U
0 0 1 0 0 1
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 2
Presence:
Presumed Extant 2
Possibly Extirpated 0
Presumed Extirpated 0
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.
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel
}