Species

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Total: 712

species valid

Salix stantonii Knowlt. Bull. U.S. Geol. Surv., (163): 38. Apr 1900

species valid

Salix vaccinifolia Knowlt. Rep. (Annual) U.S. Geol. Surv., 21(1899-1900), (2): 212. May 1901

species valid

Salix wyomingensis Knowlt., Cockerell in Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 572. 13 Feb 1920

species valid

Salpichlaena anceps (Lesq.) Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 574. 13 Feb 1920

species valid

Sambucus winchesteri Knowlt. Profess. Pap. U.S. Geol. Surv., 131(F): 173. 30 Mar 1923

species valid

Sapindus berryanus Knowlt. Profess. Pap. U.S. Geol. Surv., (155): 101. 19 Jun 1930

species valid

Sapindus grandifolioloides Knowlt. Monogr. U.S. Geol. Surv., 32(2): 738. Oct 1899

species valid

Sapindus merriamii Knowlt. Bull. U.S. Geol. Surv., (204): 78. Dec 1902

species valid

Sapindus oregonianus Knowlt. Bull. U.S. Geol. Surv., (204): 79. Dec 1902

species valid

Sapindus wardii Knowlt. Monogr. U.S. Geol. Surv., 32(2): 738. Oct 1899

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