CNPS

CNPS Rare Plant Inventory

Species Details

Chaenactis suffrutescens

Shasta chaenactis

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Photo of Chaenactis suffrutescens
© 2015 Steve Matson 		Photo of Chaenactis suffrutescens
© 2015 Steve Matson 		Photo of Chaenactis suffrutescens
©2020 Neal Kramer

Classification

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

Conservation Status

CA Rare Plant Rank: 1B.3
Fed List: None
State List: None
Global Rank: G2G3
State Rank:
 S2S3
Other Status: BLM_S; SB_BerrySB; USFS_S
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2021-10-04

Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Sep
Elevation:
750 - 2800 meters
2460 - 9185 feet
General Habitat:
  • Lower montane coniferous forest
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Sandy
  • Serpentinite

Notes

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

Occurrence Data from the CNDDB

Total Occurrences: 38
Element Occurrence Ranks:
A B C D X U
4 7 2 2 1 22
Occurrence Status:
Historical >20 Years 30
Recent <=20 Years 8
Presence:
Presumed Extant 37
Possibly Extirpated 1
Presumed Extirpated 0

Location

California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
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), Hoosimbim Mtn. (4012258), 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)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Regional Map

Map

Presumed Extant
Print this Map
Counties   Quads

Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2022. Rare Plant Inventory (online edition, v9-01 1.5). Website https://www.rareplants.cnps.org [accessed 3 October 2022].