Taxon Report

Chaenactis suffrutescens Gray

Shasta chaenactis

Print Report


© 2015 Steve Matson

  Classification

Scientific Name:
Chaenactis suffrutescens Gray
Common Name:
Shasta chaenactis
Family: Asteraceae
Element Code: PDAST200H0
USDA Plants Symbol: CHSU
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Sep May-Sep
Elevation: 750-2800 (2460-9185)
General Habitats: Lower montane coniferous forest, Upper montane coniferous forest
Microhabitat: Sandy, Serpentine
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 38
Element Occurrence Ranks:
   Excellent (A) 4
   Good (B) 7
   Fair (C) 2
   Poor (D) 2
   None (X) 1
   Unknown (U) 22
California Endemic:  False
California Counties and Islands: Name (Code)
Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Caribou Lake (4112218), Carrville (4112216), Cecil Lake (4112312), Cecilville (4112322), China Mtn. (4112245), City of Mount Shasta (4112233), Dees Peak (4112313), Dunsmuir (4112223), Duzel Rock (4112256), Etna (4112248), Fort Jones (4112257), Grasshopper Ridge (4112321), Greenview (4112258), Hayfork Summit (4012351), Mount Eddy (4112234), Seven Lakes Basin (4112224), Smoky Creek (4012332), Solomons Temple (4112263), South China Mtn. (4112235), Tangle Blue Lake (4112226), Thurston Peaks (4012382), Trinity Center (4012286), Weed (4112244)

Threat List Data from the CNDDB

Threat List Total: 10
EOs with Threat Listed: Total EOs % of EOs
12 32 %
Road/trail construction/maint. 6 15%
Dam/Inundation 3 7%
Recreational use (non-ORV) 2 5%
Altered flood/tidal/hydrologic regime 1 2%
Development 1 2%
Erosion/runoff 1 2%
Grazing 1 2%
Non-native plant impacts 1 2%
ORV activity 1 2%
Other 1 2%

Notes

Rare on the Shasta-Trinity NF.
Threats:
Threatened by erosion, grazing, and vehicles. Possibly threatened by development and non-native plants.
Taxonomy:

Selected References

Account for potential SCC evaluation (2021)
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].