Hymenoxys richardsonii

Hymenoxys richardsonii
	Bozeman, Montana
Conservation status
	; Secure (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Hymenoxys
Species:	H. richardsonii
Binomial name
	Hymenoxys richardsonii; (Hook.) Cockerell 1904
Synonyms
	Picradenia richardsonii Hook. 1833; Actinea richardsonii (Hook.) Kuntze; Actinella richardsonii (Hook.) Nutt.; Hymenoxys floribunda (A.Gray) Cockerell; Hymenoxys olivacea Cockerell;

Hymenoxys richardsonii, the pingue hymenoxys or pingue rubberweed, is a North American species of plants in the sunflower family. It is widespread across the western United States and western Canada from Arizona, New Mexico, and western Texas north as far as Alberta and Saskatchewan.

Varieties

Hymenoxys richardsonii var. floribunda (A.Gray) K.F.Parker – Arizona, Colorado, New Mexico, Texas, Utah
Hymenoxys richardsonii var. richardsonii – Alberta, Saskatchewan, Colorado, Montana, North Dakota, Utah, Wyoming

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