Horkelia campestris (M.E. Jones) Rydb.
      
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2 536271 Horkelia campestris (M.E. Jones) Rydb. [80 834158 Potentilla utahensis var. campestris M.E. Jones] Rosaceae
P.A. Rydberg, Monogr. N. Amer. Potent.: t. 88, fig. 1-4 (1898)