Taxon Report

Pyrrocoma uniflora (Hook.) Greene var. gossypina (Greene) Kartesz & Gandhi

Bear Valley pyrrocoma

Print Report

Classification


Scientific Name:	Pyrrocoma uniflora (Hook.) Greene var. gossypina (Greene) Kartesz & Gandhi
Common Name:	Bear Valley pyrrocoma
Family:	Asteraceae
Element Code:	PDASTDT0K1
USDA Plants Symbol:	PYUNG
Synonyms/Other Names:	Haplopappus uniflorus (Hook.) T. & G. ssp. gossypinus (Greene) Hall

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jul-Sep	Jul-Sep
Elevation:	1600-2300 (5250-7545)
General Habitats:	Meadows and seeps, Pebble (Pavement) plain
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G5T1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	17
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	3
Fair (C)	3
Poor (D)	4
None (X)	2
Unknown (U)	5

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Big Bear City (3411637), Big Bear Lake (3411628), Fawnskin (3411638), Moonridge (3411627), Onyx Peak (3411626)

Threat List Data from the CNDDB


Threat List Total:	10
EOs with Threat Listed:	Total EOs	% of EOs
	13	76 %
Development	8	47%
Other	4	23%
Grazing	4	23%
Recreational use (non-ORV)	3	17%
ORV activity	3	17%
Wood cutting or brush clearing	1	5%
Foot traffic/trampling	1	5%
Logging	1	5%
Mining	1	5%
Non-native plant impacts	1	5%

Notes



Known from fewer than twenty occurrences. Threatened by grazing, development, non-native plants, recreational activities, trampling, and vehicles. See Pittonia 3:23 (1898) for original description, and Phytologia 71(1):58-65 (1991) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].