Taxon Details

Eriophyllum nubigenum

Yosemite woolly sunflower

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Taxon Summary:

Eriophyllum nubigenum, commonly known as Yosemite woolly sunflower, is a annual herb in the Asteraceae that is found only in California. It occurs within Chaparral, Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 1525 to 2750 meters. Eriophyllum nubigenum is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification

Scientific Name: Eriophyllum nubigenum Greene
Common Name: Yosemite woolly sunflower
Family:	Asteraceae
Element Code:	PDAST3N0A0
USDA Plants Symbol:	ERNU6
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: annual herb

Blooming Period: May-Aug

Elevation:
1525 - 2750 meters
5005 - 9025 feet

General Habitats:

Chaparral
Lower montane coniferous forest
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Granitic
Gravelly

Notes

Notes: Known from fewer than twenty occurrences. Threatened by foot traffic, non-native plants and recreational activities. See Madroño 29(2):123 (1982) for information on rediscovery.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	5	36 %
Foot traffic/trampling	5	35%
Non-native plant impacts	3	21%
Other	2	14%
Recreational use (non-ORV)	1	7%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					14
A	B	C	D	X	U
3	4	0	0	0	7

Occurrence Status:
Historical >20 Years	14
Recent <=20 Years	0

Presence:
Presumed Extant	14
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Madera (MAD), Mariposa (MPA), Tuolumne (TUO)

Quads: Name (Quad Code)
Ascension Mtn. (3711978), Half Dome (3711965), Mariposa Grove (3711955), Merced Peak (3711964)

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

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CNPS Rare Plant Inventory