BUTTERCUP FAMILY 5 



an achenc with a long plumy style; flowers regular, solitary or clustered; 

 leaves opposite, usually pinnate or pinnatifid, sometimes entire; stems 

 perennial, climbing by the leaf stalks, trailing or erect. 



I . Stems climbing ; flowers small, white C. ligusticifolia 



I. Stems trailing- or erect ; flower large, blue to vio- 

 let 

 a. Stems trailing, rarely climbing; leaves ternate 



(1) Leaves 3-foliate C. occidentdlis 



(2) Leaves twice-ternate C.alpina 



1). Stems erect; leaves pinnatifid C. Dougldsii 



Delphinium Linne 1753 Larkspur 

 (Gr. dclpfnnion, larkspur, from delphis, dolphin, perhaps in allusion to the 



irregular form) 

 PI. 1, fig. 4. 



Sepals 5, petal-like, the back one spurred, blue, white or red, petals 

 2 or 4, the back ones spurred, the lateral small or lacking, stamens many, 

 pistils 1-several, usually 3, fruit a many-seeded follicle; flowers irregular, 

 in a raceme, often spike-like, or sometimes in a panicle; leaves palmately 

 cleft or divided; stems from a caudex or from tuberous roots; ours poison- 

 ous perennials. ' 



1. Stem and leaves, or at least the flower cluster, 



glandular and sticky D. occidentdle 



2. Stem and leaves not sticky glandular 



a. Roots thickened, more or less tuberous; plants 



usually .5-3 ft. high 



(1) Stems mostly closely and densely gray- 



hairy ; flowers often whitish D. carolinianum 



(2) Stems smooth or with loose spreading 



hairs above D. Menziesii 



b. Roots woody and branched, scarcely tuberous ; 



plants 3-8 ft. high D. scopulorum 



Myosurus Linne 1753 Mouse-tail 

 (Gr. my our os y mouse-tail, from the tail-like spike of fruits) 



Sepals 5, somewhat petal-like, spurred, petals 5, tiny, or none, stamens 

 many, pistils many, fruits achenes, forming a spike; flowers regular, single, 

 on leafless stalks; leaves basal, linear, entire; low annuals. 



