Species Details

Acanthomintha duttonii

San Mateo thorn-mint

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Lifeform: annual herb
Blooming Period: Apr-Jun
Elevation:
50 - 300 meters
165 - 985 feet
General Habitat:
  • Chaparral
  • Valley and foothill grassland
General Micro Habitat:
Micro Habitat:
  • Serpentinite
Notes:
One historical occurrence has been extirpated. Seriously threatened by development, non-native plants, vehicles, and vandalism. USFWS uses the name Acanthomintha obovata ssp. duttonii. See Illustrated Flora of the Pacific States 3:635 (1951) by L. Abrams for original description, and MadroƱo 38(4):278-286 (1991) for revised nomenclature.
Threats:
Taxonomy:
Other:
References:
Total Occurrences: 5
Element Occurrence Ranks:
A B C D X U
0 1 0 1 2 1
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 1
Presence:
Presumed Extant 3
Possibly Extirpated 1
Presumed Extirpated 1
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Mateo (SMT)
Quads: Name (Quad Code)
Palo Alto (3712242)*, San Mateo (3712253)*, Woodside (3712243)
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.

Map

Presumed Extant
Counties   Quads