POTENTILLA PLATTENSIS Nutt.; Torr. & Gray, Fl. N. Am. I : 439. 1840.
The type specimens of Nuttall have light green leaves with 4-8 pairs of oblong-cuneate leaflets, dissected into broadly oblong obtuse segments cm. long, and a stem that is more or less as cending. In the more common form, however, the segments are often 34 cm. long, nearly linear and often acute, the stem more or less spreading and the flower-clusters very irregular. It may
be a good variety.
All forms of P. Plattensis are characterized by the stipules, which are unusually large for the size of the plant. Its range is from Colorado and Utah to the Saskatchewan, but it belongs to the valleys of the high plains rather than to the alpine regions.