Roadless Areas
Home/Species/ Shasta County Arnica

Arnica venosa

Hall

Shasta County Arnica

G3Vulnerable Found in 5 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.150120
Element CodePDAST0Q0Q0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusArnica
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 Date2014-08-11
Change Date1997-03-14
Edition Date1987-06-10
Edition AuthorsRoth, E.
Range Extent<100-250 square km (less than about 40-100 square miles)
Number of Occurrences6 - 20
Rank Reasons
Known from about 20 EOs; rare but increasing in numbers with human disturbance. EGR supports GRANK of G2? (84-10-15). G3 rank from California Heritage Program (6/96).
Range Extent Comments
Western Shasta Co. and eastern Trinity Co., California.
Occurrences Comments
Known from about 20 populations.
Ecology & Habitat

Habitat

Disturbed sites such as road cuts; dry, open Ponderosa Pine, Douglas Fir, Black Oak forests.
Other Nations (1)
United StatesN3
ProvinceRankNative
CaliforniaS3Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (5)
California (5)
AreaForestAcres
Bonanza KingShasta-Trinity National Forest16,402
Dog CreekShasta-Trinity National Forest5,001
East GirardShasta-Trinity National Forest27,894
Lake EleanorShasta-Trinity National Forest397
West GirardShasta-Trinity National Forest37,516
References (1)
  1. 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.