A shrub, four or five feet tall, which grows in dry rocky places
among pinyons and junipers. The white flowers have 5 petals, and
are about an inch and a half across. They start blooming
in May or June, and continue through the summer.
Each blossom has many pistils, and each pistil matures into a seed
with a long feathery plume attached.
The bundle of plumes supposedly resembles a head-dress worn in
some native American tribes.