Abrams - 3933 - United States
Abrams - 4144 - United States
Ahart - 2507 - United States
Ahart - 4446 - United States
Ahart - 4765 - United States
Ahart - 5074 - United States
Allen - 470 - United States
Archer - 7004 - United States
Asclepias fascicularis
Austin - s.n. - United States
Baker - 1547 - United States
Baker - 4689 - United States
Baker - 901 - United States
Blankinship - s.n. 1928 - United States
Bolander - 6377 - United States
Brandegee - 14186 - United States
Braunton - 1031 - United States
Brooks - 20177 - United States
Brown - 596 - United States
Brown - 98 - United States
Bruce - 451 - United States
Butler - 1613 - United States
Cantelow - s.n. 1937 - United States
Carter - 464 - United States
Conrad - 7248 - United States
Copeland - 3558 - United States
Cox - 401 - United States
Cronquist - 6091 - United States
Culbertson - 4487 - United States
Davis - 1788 - United States
Davis - 2273 - United States
Davis - 2915 - United States
Davis - 698 - United States
Davis - 968 - United States
Davis - s.n. 1915 - United States
Dunn - 20895 - United States
Duran - 3547 - United States
Elmer - 5004 - United States
Engelmann - s.n. 1880 - United States
Ertter - 10802 - United States
Ertter - 14916 - United States
Everett - 7423 - United States
Fishbein - 5886 - United States
Grant - 63-6319 - United States
Hall - 429 - United States
Hall - s.n. 1897 - United States
Hansen - 1992 - United States
Hansen - 73 - United States
Hasse - s.n. 1888 - United States
Heller - 5643 - United States
Henderson - 304 - United States
Henderson - 653 - United States
Henrichs - 554 - United States
Howell - 1215 - United States
Howell - 49935 - United States
James - 2491 - United States
Jones - s.n. 1897 - United States
Jones - s.n. 1899 - United States
Kearney - s.n. 1901 - United States
Leiberg - 1669 - United States
Macbride - 1651 - United States
Michener - s.n. 1892 - United States
Moran - 27818 - Mexico
Morefield - 4039 - United States
Muenscher - 5566 - United States
Mulford - 272 - United States
Nelson - 2219 - United States
Noonan - 44 - United States
Ownbey - 2170 - United States
Palmer - 223 - United States
Palmer - 37976 - United States
Parish - 308 - United States
Parish - s.n. 1888 - United States
Pinzl - 14501 - United States
Pinzl - 4283 - United States
Prinzie - 243 - United States
Redfield - 4892 - United States
Rose - 36714 - United States
Rothrock - 190 - United States
Sandberg - 896 - United States
Sandberg - s.n. 1892 - United States
Savage - s.n. 1898 - United States
Schery - 10 - United States
Schery - 8 - United States
Sheldon - 8929 - United States
Shultz - 8636 - United States
Smith - 6807 - United States
St. John - 4897 - United States
Stanford - 695 - United States
Taylor - 964 - United States
Thompson - 11115 - United States
Thompson - 2812 - United States
Thompson - 4960 - United States
Thompson - s.n. 1903 - United States
Thorne - 38041 - United States
Thorne - 53533 - United States
Tidestrom - 10792 - United States
Tiehm - 17088 - United States
Tilforth - 1414 - United States
Tilforth - 2188 - United States
Tilforth - 695 - United States
Townesmith - 970 - United States
Turner - 12-165 - United States
Turner - 14-145 - United States
Twisselmann - 7890 - United States
Watson - 2017-32 - United States