Colorado Experiment Station 
28 
Figs. 20 - 26.—Larkspurs and aconite: 20, flower of Penhard’s larkspur, note the erect 
flower stalk and spur: 21, flower of Nelson’s larkspur; 22, flower of Geyer’s larkspur; 
23, flower of aconite; note the “hood”; 24, fruit of Nelson’s larkspur; 25, fruit of Geyer’s 
larkspur; 26, fruit of aconite. 
