Taxon Report

Phlox dolichantha Gray

Big Bear Valley phlox

Print Report


Taxon Summary

Phlox dolichantha, commonly known as Big Bear Valley phlox, is a perennial herb in the Polemoniaceae that is found only in California. It occurs within Pebble (Pavement) plain, and Upper montane coniferous forest (openings), growing at elevations from 1830 to 2970 meters. Phlox dolichantha is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Phlox dolichantha Gray
Common Name:
Big Bear Valley phlox
Family: Polemoniaceae
Element Code: PDPLM0D0P0
USDA Plants Symbol: PHDO2
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Jul May-Jul
Elevation: 1830-2970 (6005-9745)
General Habitats: Pebble (Pavement) plain, Upper montane coniferous forest
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 45
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 11
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 34
California Endemic:  True
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Big Bear City (3411637), Big Bear Lake (3411628), Butler Peak (3411731)?, Fawnskin (3411638), Moonridge (3411627), Onyx Peak (3411626)

Threat List Data from the CNDDB

Threat List Total: 11
EOs with Threat Listed: Total EOs % of EOs
24 53 %
Development 10 22%
Recreational use (non-ORV) 8 17%
Non-native plant impacts 5 11%
ORV activity 5 11%
Foot traffic/trampling 4 8%
Road/trail construction/maint. 3 6%
Vandalism/dumping/litter 2 4%
Other 2 4%
Mining 2 4%
Improper burning regime 1 2%
Logging 1 2%

Notes

Threatened by foot traffic, logging, vehicles, urbanization, and recreation. Possibly threatened by mining and road maintenance. See Proceedings of the American Academy of Arts and Sciences 22:310 (1887) for original description.
Threats:
Threatened by foot traffic, logging, vehicles, urbanization, and recreation. Possibly threatened by mining and road maintenance.
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 24 February 2025].