Sphaeralcea leptophylla (A. Gray) Rydb. Sphaeralcea leptophylla (A. Gray) Rydb. in Bull. Torrey Bot. Club 40(2): 59. 1913 sec. Fryxell 1988≡Malvastrum leptophyllum A. Gray, Smithsonian Contributions to Knowledge 3(5): 17. 1852 syn. sec. Fryxell 1988