Taxon Report
Phlox dolichantha GrayBig Bear Valley phlox |
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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
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Scientific Name: |
Phlox dolichantha Gray |
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Common Name: |
Big Bear Valley phlox |
| Family: | Polemoniaceae |
| Element Code: | PDPLM0D0P0 |
| USDA Plants Symbol: | PHDO2 |
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Synonyms/Other Names: |
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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: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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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
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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 |
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Threats: |
| Threatened by foot traffic, logging, vehicles, urbanization, and recreation. Possibly threatened by mining and road maintenance. |
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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 October 2025].