Taxon Report

Eriophyllum confertiflorum (DC.) Gray var. tanacetiflorum (Greene) Jeps.

tansy-flowered woolly sunflower

Print Report

Taxon Summary

Eriophyllum confertiflorum var. tanacetiflorum, commonly known as tansy-flowered woolly sunflower, is a perennial shrub in the Asteraceae that is found only in California. It occurs within Cismontane woodland, and Lower montane coniferous forest, growing at elevations from 305 to 1340 meters. Eriophyllum confertiflorum var. tanacetiflorum is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Eriophyllum confertiflorum (DC.) Gray var. tanacetiflorum (Greene) Jeps.
Common Name:	tansy-flowered woolly sunflower
Family:	Asteraceae
Element Code:	PDAST3N0D0
USDA Plants Symbol:	ERCOT
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial shrub
Blooming Period: May-Jul	May-Jul
Elevation:	305-1340 (1000-4395)
General Habitats:	Cismontane woodland, Lower montane coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G5T2?Q
State Rank:	S2?
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
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: True
California Counties and Islands: Name (Code)
Calaveras (CAL), Inyo (INY), Kern (KRN), Mariposa (MPA), Tuolumne (TUO), Ventura (VEN)
Quads: Name (Quad Code)
Bear Valley (3712051), Coulterville (3712062), Eagle Rest Peak (3411982), Haiwee Pass (3611821), Hornitos (3712052), Moccasin (3712073), Mokelumne Hill (3812036), Murphys (3812024), Reyes Peak (3411963)

Threat List Data from the CNDDB


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

Notes



See Pittonia 2:21 (1889) for original description, and Manual of the Flowering Plants of California, p. 116 (1925) by W.L. Jepson 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 6 October 2025].