Subalpine, alpine.  Meadows, rocks, tundra. Summer.
Cinnamon Pass, August 1, 2007.
Black Bear Pass Road, July 20, 2008.

Packera dimorphophylla disk flower buds can sometimes be a very attractive orange, soon changing to golden yellow.  Ray flowers are at first quite minute, gradually widening and lengthening and unfolding bright yellow.  The few stem leaves are narrow or triangular and only 1-3 inches long and clasping,  

contrasting with the circular, petioled basal leaves shown at left. 

Plants can grow to twenty inches tall but on alpine meadows, tundra, and scree they are large at seven inches.  Packera dimorphophylla is found in the mountains of Colorado, Utah, and New Mexico (only in Taos County).  It is not found in Arizona.

Edward Greene named this plant Senecio dimorphophyllus in 1900 from a specimen collected by Charles Baker on Pagosa Peak in Colorado.  William Weber and Askell Love renamed it Packera dimorphophylla in 1981.  "Dimorphophylla" is Greek for "two forms of leaves".

Subalpine, alpine.  Meadows, rocks, tundra. Summer.
Cinnamon Pass, August 1, 2007.

Subalpine, alpine.  Meadows, rocks, tundra. Summer.
Cinnamon Pass, August 1, 2007.
Black Bear Pass Road, July 20, 2008.