Taxon Report

Packera macounii (Greene) W.A. Weber & A. Love

Siskiyou Mountains ragwort

Print Report

Taxon Summary

Packera macounii, commonly known as Siskiyou Mountains ragwort, is a perennial herb in the Asteraceae that is found in California and elsewhere. It occurs within Chaparral, and Lower montane coniferous forest, growing at elevations from 400 to 915 meters. Packera macounii is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Packera macounii (Greene) W.A. Weber & A. Love
Common Name:	Siskiyou Mountains ragwort
Family:	Asteraceae
Element Code:	PDAST8H1Z0
USDA Plants Symbol:	PAMA35
Synonyms/Other Names:	Senecio ligulifolius Senecio macounii Greene

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Jul	Jun-Jul
Elevation:	400-915 (1310-3000)
General Habitats:	Chaparral, Lower montane coniferous forest
Microhabitat:	Disturbed areas (often), Serpentine (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G4?
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: False
California Counties and Islands: Name (Code)
Del Norte (DNT), Siskiyou (SIS)
Quads: Name (Quad Code)
Blue Creek Mtn. (4112347), Cant Hook Mtn. (4112368), Childs Hill (4112461), Gasquet (4112378), High Divide (4112481), Kangaroo Mtn. (4112382), Klamath Glen (4112358), Ship Mountain (4112367)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



See Senecio macounii in The Jepson Manual (1993). See Pittonia 3:169 (1897) for original description and North American Flora II 10:93-94 (1978) for taxonomic treatment. See Phytologia 49(1): 44-50 (1981) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 16 November 2025].