Taxon Report

Poliomintha incana (Torr.) Gray

frosted mint

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Taxon Summary

Poliomintha incana, commonly known as frosted mint, is a perennial shrub in the Lamiaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, growing at elevations from 1600 to 1700 meters. Poliomintha incana is ranked 2A, Plants Presumed Extirpated in California, But More Common Elsewhere.


  Classification

Scientific Name:
Poliomintha incana (Torr.) Gray
Common Name:
frosted mint
Family: Lamiaceae
Element Code: PDLAM1L020
USDA Plants Symbol: POIN3
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial shrub
Blooming Period: Jun-Jul Jun-Jul
Elevation: 1600-1700 (5250-5580)
General Habitats: Lower montane coniferous forest
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 1
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 1
California Endemic:  False
California Counties and Islands: Name (Code)
San Bernardino (SBD)*
Quads: Name (Quad Code)
Big Bear City (3411637)*

Notes

Known in CA from only a single historical collection (in 1938) at Cushenbury Springs. Possibly extirpated by mining activities. See Botany of the U.S. and Mexican Boundary Survey, 2(1):130 (1858) by W. Emory for original description, and Proceedings of the American Academy of Arts and Sciences 7:247-296 (1870) for taxonomic treatment.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 21 February 2025].