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Phacelia novenmillensis

Munz

Nine Mile Canyon Phacelia

G3Vulnerable Found in 4 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
LowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.157017
Element CodePDHYD0C3A0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderSolanales
FamilyHydrophyllaceae
GenusPhacelia
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
Rank Method Rank calculation - Biotics v2
Review Date2022-05-12
Change Date2022-05-12
Edition Date2020-11-30
Edition AuthorsD. Gries (1997), rev. A. Treher, Bittman, & A. Kim (2013), rev. R. Bittman (2015), rev. K. Ferguson (2020), rev. Treher (2022)
Threat ImpactLow
Range Extent1000-5000 square km (about 400-2000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Phacelia novenmillensis is an annual herb that is endemic to California, where there are 22 occurrences in Inyo, Kern, and Tuolumne Counties. Overall the species has low threats, as it occurs in protected, pristine habitats. A few occurrences have threats which include grazing and recreational activities.
Range Extent Comments
Phacelia novenmillensis occurs in the western United States, where it is endemic to California. It is found in Inyo, Kern, and Tuolumne Counties on the eastern slope of the High Sierra Nevada and the edge of the Mojave Desert (CNDDB 2022, Jepson Flora Project 2022).
Occurrences Comments
There are 26 occurrences, of which 6 were last surveyed more than 20 years ago (prior to 2002) (CNDDB 2022).
Threat Impact Comments
This species grows in remote, pristine areas. Most sites don't have obvious threats or they are unknown. The few occurrences that do report threats include grazing, recreation, fire, and construction of BLM campground (CNDDB 2022). The construction of a BLM campground altered/destroyed part of one site but impacts of trampling may still be a threat to the remaining portion.
Ecology & Habitat

Habitat

This species grows in dry, open areas with sandy to gravelly soils, typically granitic or metamorphic, on disturbed banks within Pinyon-Juniper Woodland, Foothill/Cismontane Woodland, Red Fir Forest, and Mixed Evergreen Forest communities at elevations of 1,280 to 2,350 m (CNDDB 2022, Jepson Flora Project 2022).
Terrestrial Habitats
Forest/WoodlandForest - ConiferForest - MixedWoodland - ConiferWoodland - Mixed
Other Nations (1)
United StatesN3
ProvinceRankNative
CaliforniaS3Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial developmentSmall (1-10%)Serious or 31-70% pop. declineInsignificant/negligible or past
1.3 - Tourism & recreation areasSmall (1-10%)Serious or 31-70% pop. declineInsignificant/negligible or past
2 - Agriculture & aquacultureSmall (1-10%)Slight or 1-10% pop. declineHigh (continuing)
2.3 - Livestock farming & ranchingSmall (1-10%)Slight or 1-10% pop. declineHigh (continuing)
2.3.4 - Scale unknown/unrecordedSmall (1-10%)Slight or 1-10% pop. declineHigh (continuing)
6 - Human intrusions & disturbanceRestricted (11-30%)Slight or 1-10% pop. declineHigh (continuing)
6.1 - Recreational activitiesRestricted (11-30%)Slight or 1-10% pop. declineHigh (continuing)
7 - Natural system modificationsSmall (1-10%)Negligible or <1% pop. declineHigh (continuing)
7.1 - Fire & fire suppressionSmall (1-10%)Negligible or <1% pop. declineHigh (continuing)

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Plant Characteristics
DurationANNUAL
Economic Value (Genus)No
Roadless Areas (4)
California (4)
AreaForestAcres
Domeland Add.Sequoia National Forest3,046
South SierraInyo National Forest41,853
South SierraSequoia National Forest8,008
WoodpeckerSequoia National Forest11,936
References (6)
  1. California Natural Diversity Database (CNDDB). 2022. RareFind Version 5.2.14. California Department of Fish and Game, Sacramento.
  2. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  3. Jepson Flora Project (eds.) 2022. Jepson eFlora. Online. Available: https://ucjeps.berkeley.edu/eflora/ (accessed 2022).
  4. 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.
  5. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.
  6. 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.