Brant - 1935 - United States
Cutler - 1957 - United States
Cutler - 656 - United States
Davidse - 39518 - United States
Foster - 0178 - United States
Gust - 469 - United States
Gust - 488 - United States
Hinton - 23993 - Mexico
Holmes - 5737 - United States
Larrea tridentata
Lundell - 10203 - United States
Schmidt - 2624 - United States