Canada's Plant Hardiness Site

Asteraceae daisy family
Hymenoxys richardsonii var. richardsonii (Hook.) Cockerell
En: Richardson's bitterweed, pingue rubberweed, Colorado rubberweed, Colorado bitterweed;
Fr: hymenoxys de Richardson

• [=Actinea richardsonii (Hook.) Kuntze]
• [=Actinella richardsonii (Hook.) Nutt.]
• [=Hymenopappus ligulaeflorus A.Nelson]
• [=Hymenoxys ligulaeflora (A.Nelson) Cockerell]
• [=Hymenoxys macounii (Cockerell) Rydb.]
• [=Hymenoxys macrantha (A.Nelson) Rydb.]
• [=Hymenoxys pumila (Greene) Rydb.]
• [=Hymenoxys richardsonii (Hook.) Cockerell subsp. ligulaeflora (A.Nelson) Cockerell]
• [=Hymenoxys richardsonii (Hook.) Cockerell subsp. macrantha (A.Nelson) Cockerell]
• [=Hymenoxys richardsonii (Hook.) Cockerell subsp. pumila (Greene) Cockerell]
• [=Hymenoxys richardsonii (Hook.) Cockerell var. ligulaeflora (A.Nelson) Cockerell]
• [=Hymenoxys richardsonii (Hook.) Cockerell var. macounii Cockerell]
• [=Hymenoxys richardsonii (Hook.) Cockerell var. nelsonii Cockerell]
• [=Picradenia ligulaeflora (A.Nelson) A.Nelson]
• [=Picradenia macrantha A.Nelson]
• [=Picradenia pumila Greene]
• [=Picradenia richardsonii Hook. - basionym]