Taxon Details
Acanthomintha duttonii
San Mateo thorn-mint
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Taxon Summary:
Acanthomintha duttonii, commonly known as San Mateo thorn-mint, is a annual herb in the Lamiaceae that is found only in California. It occurs within Chaparral, and Valley and foothill grassland, growing at elevations from 50 to 300 meters. Acanthomintha duttonii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.
Scientific Name: Acanthomintha duttonii (Abrams) Jokerst |
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Common Name: San Mateo thorn-mint |
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Family: | Lamiaceae | |
Element Code: | PDLAM01040 | |
USDA Plants Symbol: | ACDU2 | |
Synonyms/Other Names: |
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Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
CA Rare Plant Rank: | 1B.1 |
Fed List: | FE (1985-10-18) |
State List: | CE (1979-07-01) |
Global Rank: | G1 |
State Rank: |
S1 |
Other Status: | SB_UCBG |
CRPR Changes: |
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Add Date: | 1974-01-01 |
Date Edited: | 2023-06-06 |
Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-Jun
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Elevation:
50 - 300 meters 165 - 985 feet |
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General Habitats:
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Microhabitat Details: | ||||||||||||||
Microhabitat:
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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 Madroño 38(4):278-286 (1991) for revised nomenclature. |
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Threats: |
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Taxonomy: |
Threat List Total: | 8 | |
Total EOs | % of EOs | |
EOs with Threat Listed: | 5 | 100 % |
THREAT LIST: | ||
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Development | 3 | 60% |
Non-native plant impacts | 3 | 60% |
Altered flood/tidal/hydrologic regime | 2 | 40% |
ORV activity | 1 | 20% |
Other | 1 | 20% |
Recreational use (non-ORV) | 1 | 20% |
Road/trail construction/maint. | 1 | 20% |
Vandalism/dumping/litter | 1 | 20% |
Total Occurrences: | 5 | ||||
Element Occurrence Ranks: | |||||
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A | B | C | D | X | U |
0 | 1 | 0 | 1 | 2 | 1 |
Occurrence Status: | |||||
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Historical >20 Years | 4 | ||||
Recent <=20 Years | 1 |
Presence: | |||||
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Presumed Extant | 3 | ||||
Possibly Extirpated | 1 | ||||
Presumed Extirpated | 1 |
California Endemic: | |||||||||||||
California Island: | |||||||||||||
States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) San Mateo (SMT) |
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Quads: Name (Quad Code) Palo Alto (3712242)*, San Mateo (3712253)*, Woodside (3712243) |
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Notes:
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Presumed Extant
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