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[1][2]
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.^[3]

Varieties^[2][4]

• 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