Bill Bouton:
Spreading Larkspur, Delphinium patens
Bill Bouton:
Anderson's Larkspur, Delphinium andersonii
Bill Bouton:
Meadow/Nuttall's Larkspur, Delphinium nuttallianum
Bill Bouton:
Nuttall's/Twolobe Larkspur, Delphinium nuttallianum
Bill Bouton:
Blochman's/Dune Larkspur, Delphinium parryi ssp. blochmaniae
Bill Bouton:
Umbrella Larkspur, Delphinium umbraculorum
Bill Bouton:
Dwarf Larkspur, Delphinium depauperatum
Bill Bouton:
Prairie Larkspur, Delphinium virescens
Bill Bouton:
Recurved Larkspur, Delphinium recurvatum
Bill Bouton:
Recurved Larkspur, Delphinium recurvatum
Bill Bouton:
Gypsum-loving Larkspur, Delphinium g. gypsophilum
Bill Bouton:
Gypsum-loving Larkspur, Delphinium gypsophilum
Bill Bouton:
Gypsum-loving Larkspur, Delphinium gypsophilum
Bill Bouton:
Red/Canyon Larkspur, Delphinium nudicaule
Bill Bouton:
Red/Canyon Larkspur, Delphinium nudicaule
Bill Bouton:
Red/Canyon Larkspur, Delphinium nudicaule