CNPS Inventory Plant Detail

Ageratina shastensis

Common Name:	Shasta ageratina
Family:	Asteraceae
Synonyms:	Eupatorium shastense
Element Code:	PDASTBX0R0
Full Name:	Ageratina shastensis (D.W. Taylor & Steb.) R.M. King & H. Robinson
USDA PLANTS Symbol:	AGSH2

Biology
Lifeform: perennial herb Blooming Period: June - October Habitat: Rocky, often carbonate. • Chaparral • Lower montane coniferous forest

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2 S2: Imperiled. Global Rank: G2 G2: Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 15
Element Occurrence Ranks:

A B C D X U

2 2 1 1 1 8

Population Status:

Historic >20 yrs	Recent <=20 yrs
9	6

Presence:

Present Extant	Possibly Extirpated	Extirpated
14	1	0

Notes
Threatened by mining. See Madroño 25(4):218-220 (1978) for original description. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1974-01-01 Last Update: 2011-02-17

Location

Elevation: 400 - 1800 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Shasta (SHA)

Quads: name (DWR code) USGS code
Goose Gap (664A) 40122H1, Bollibokka Mtn. (664B) 40122H2, Minnesota Mtn. (664C) 40122G2, Devils Rock (664D) 40122G1, Hanland Peak (665A) 40122H3, O'Brien (665D) 40122G3, Grizzly Peak (680B) 41121B8, Lake McCloud (681A) 41122B1, Yellowjacket Mtn. (681C) 41122A2, Shoeinhorse Mtn. (681D) 41122A1, Tombstone Mtn. (682D) 41122A3

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

808

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-122.125,40.875