POTENTILLA NI:TTALI.11 Lehm. Ind. Sem. Hort. Bot. Hamb. 1852 : 12. 1852.
Potentilla recta Nutt. Gen. r : 310. Not L.
Potent/11a rigida Nutt. Journ. Acad. Phila. 7: 20. 1834. Not Wall.
Potentilla gracilis rekida Wats. Proc. Am. Acad. 7 : 557. 1873.
The general habit of this species resembles that of 7'. Blasch kering, but the plant is green, without tomentum and coasely hir sute. The distribution is from Colorado to California, British Columbia and Saskatchewan.