Taxon Report
Acanthomintha duttonii (Abrams) JokerstSan Mateo thorn-mint |
 © 2011 Aaron Schusteff |
Classification
|
Scientific Name: |
Acanthomintha duttonii (Abrams) Jokerst |
|
Common Name: |
San Mateo thorn-mint |
| Family: | Lamiaceae |
| Element Code: | PDLAM01040 |
| USDA Plants Symbol: | ACDU2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Apr-Jun | Apr-Jun |
| Elevation: | 50-300 (165-985) |
| General Habitats: | Chaparral, Valley and foothill grassland |
| Microhabitat: | Serpentine |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G1 |
|
State Rank: |
S1 |
| State List: | CE |
| Fed List: | FE |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 5 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 1 |
| Fair (C) | 0 |
| Poor (D) | 1 |
| None (X) | 2 |
| Unknown (U) | 1 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| San Mateo (SMT) | |
| Quads: Name (Quad Code) | |
| Palo Alto (3712242)*, San Mateo (3712253)*, Woodside (3712243) | |
Threat List Data from the CNDDB
| Threat List Total: | 8 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 5 | 100 % | |
| 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% |
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: |
Selected References
| Recovery Plan for Acanthomintha duttonii (San Mateo thorn-mint) (USFWS 1998) |
| Recovery Plan Amendment for Acanthomintha duttonii (San Mateo thorn-mint) (USFWS 2019) |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].