Phlox hirsuta
E. Nels.
Yreka Phlox
G1Critically ImperiledGlobal Rank
HighThreat Impact
U.S. Fish & Wildlife Service, https://www.usa.gov/government-works
Identity
Unique IDELEMENT_GLOBAL.2.130294
Element CodePDPLM0D100
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderSolanales
FamilyPolemoniaceae
GenusPhlox
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Review Date2015-11-10
Change Date1989-04-28
Edition Date2005-09-20
Edition AuthorsMaybury, K., R. Bittman 2005
Threat ImpactHigh
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 5
Rank Reasons
Endemic to serpentine soils in Siskiyou County, northern California. Only 4 populations are currently known, located in and near the town of Yreka. The type location near the town of Etna has never been relocated. A significant portion of 1 the occurrences is located on land subdivided for housing development. Other threats aside from development include ORVs, logging, grazing and road construction. No sites are currently protected. There are only about 1500 total plants known, but accurate pop counts are needed.
Range Extent Comments
In and near the towns of Yreka and Etna in Siskiyou County, northern California (USFWS 1995). Range extent is approximately 34 sq mi.
Occurrences Comments
4 known extant occurrences.
Threat Impact Comments
One of the 2 sites is threatened by housing and associated development: 60 of the 90 acres occupied by the species at this site are within an area subdivided for development (USFWS 1995). Skinner and Pavlik (1994) say this population is also threatened by vehicles. In addition to development and ORVs, threats include logging, road building, and grazing.
Ecology & Habitat
Habitat
Serpentine talus in lower and upper montane coniferous forest communities. 885-1500 m elevation.
Terrestrial Habitats
Forest/WoodlandForest - ConiferWoodland - ConiferBarrens
Other Nations (1)
United StatesN1
| Province | Rank | Native |
|---|---|---|
| California | S1 | Yes |
Threat Assessments
| Threat | Scope | Severity | Timing |
|---|---|---|---|
| 1 - Residential & commercial development | Large - restricted | Serious or 31-70% pop. decline | High - moderate |
| 1.1 - Housing & urban areas | Large - restricted | Serious or 31-70% pop. decline | High - moderate |
| 2 - Agriculture & aquaculture | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
| 2.3 - Livestock farming & ranching | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
| 4 - Transportation & service corridors | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
| 4.1 - Roads & railroads | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
| 5 - Biological resource use | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
| 5.3 - Logging & wood harvesting | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
| 6 - Human intrusions & disturbance | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
| 6.1 - Recreational activities | Large - restricted | Serious or 31-70% pop. decline | High (continuing) |
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (7)
California (6)
| Area | Forest | Acres |
|---|---|---|
| Boulder | Klamath National Forest | 435 |
| Muse | Klamath National Forest | 238 |
| Orleans Mtn. | Klamath National Forest | 49,090 |
| Russian | Klamath National Forest | 21,771 |
| Shackleford | Klamath National Forest | 1,679 |
| Snoozer | Klamath National Forest | 23,414 |
South Dakota (1)
| Area | Forest | Acres |
|---|---|---|
| Indian Creek | Buffalo Gap National Grassland | 24,666 |
References (3)
- Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
- Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.
- U.S. Fish and Wildlife Service (USFWS). 1995. Category and Listing Priority Form.