Species Details

Erythranthe taylorii

Shasta limestone monkeyflower

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Photo by © 2016 Steve Matson  max-height:128px; max-width:145px;
© 2016 Steve Matson
Photo by © 2013 Julie Kierstead Nelson  max-height:128px; max-width:145px;
© 2013 Julie Kierstead Nelson
Photo by © 2013 Julie Kierstead Nelson  max-height:128px; max-width:145px;
© 2013 Julie Kierstead Nelson
Scientific Name:
Erythranthe taylorii Nesom
Common Name:
Shasta limestone monkeyflower
Family: Phrymaceae
Element Code: PDPHR01080
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: (Feb)Apr-May
355 - 980 meters
1165 - 3215 feet
General Habitat:
  • Cismontane woodland
  • Lower montane coniferous forest
General Micro Habitat: carbonate crevices and rocky outcrops
Micro Habitat:
  • Carbonate
  • Openings
  • Rocky
Known only from the Shasta Lake region. Threatened by Shasta Dam raise and reservoir enlargement. Possibly threatened by road maintenance, mining, alteration of fire regimes, and non-native plants. Previously identified, and similar to, E. alsinoides and E. pulsiferae. Also similar to E. ampliata, an Idaho endemic that is hypothesized to be its closest relative. Not in TJM 2. See Phytoneuron 2013-43:1-10 (2013) for original description.
Total Occurrences: 31
Element Occurrence Ranks:
0 27 1 0 0 3
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 31
Presumed Extant 31
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA)
Quads: Name (Quad Code)
Bohemotash Mtn. (4012274), Bollibokka Mtn. (4012282), Devils Rock (4012271), Girard Ridge (4112222), Goose Gap (4012281), Hanland Peak (4012283), Minnesota Mtn. (4012272), O'Brien (4012273), Shoeinhorse Mtn. (4112211), Tombstone Mtn. (4112213), Yellowjacket Mtn. (4112212)
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
Counties   Quads