98 RANUNCULACEAE (BUTTERCUP FAMILY) 



CIMIFUGA (Bugbane) 



Herbs, perennial, tall. Leaves ternately compound, large. Flowers 

 small, white, in panicled racemes. Sepals 4-6, falling soon after the flowpr 

 opens. Petals 0-8. Stamens many. Follicles 1-8. Seeds many. — 

 (L. cimex = bug, fugere = to drive away ; its odor drives insects away.) 



A. Petals none; staminodia 1-2 or more; follicles 1-3, not stalked. W. C. data 

 AA. Either petals or staminodia present, 1-5; follicles 3-5 or more, stalked. C. 



C. laclniata 

 AQUILEGIA (Columbine) 



Herbs, perennial. Leaflets roundish, obtusely lobed. Flowers terminal, 

 showy. Sepals 5, petal-like. Stamens many, outer long-exserted, inner 

 merely thin scales. Follicles 5, sessile, pointed with the slender style. — ■ 

 (L. aquila = an eagle ; referring to the talon-like spurs of the flowers.) ' 



A. Flowers red to yellow, pendulous when open. 



B. Petal blade from half to as long as the spur. W. C. E. A. formosa 

 BB. Petal blade very short or none. W. A. truncata 



AA. Flowers white to bluish, erect or ascending when open. 



C. Flowers almost white, slightly bluish. E. A. coerulea (White Columbine) 

 CC. Flowers bluish, somewhat yellowish on lobes and spurs. E. 



A. oreophlla (Blue Columbine) 



DELPHINIUM (Lark-spur) 



Herbs, erect, annual or perennial. Leaves alternate. Flowers showy, 

 in racemes or panicles. Sepals 5, usually colored and petal-like. Petals 

 2 or 4, small; 2 upper petals produced backward and inclosed in the sepal 

 spur. Stamens many. Style persistent. Follicles 1-5, sessile. Seeds 

 many. — (Gk. del p kin = a. dolphin; from a slight resemblance of the 

 flower.) Many are poisonous to cattle. 



A. Flowers white or green or blue. 

 B. Most of the pedicels shorter than the flowers and the fruit. 

 C. Flowers blue or purplish. 

 D. Roots fasciculate, elongate, not tuber-like. 

 E. Leaves 5-7.5 cm. wide; stem 3-18 dm. high. 

 F. Leaf segments laciniately many parted, the lobes linear. C. E. 



B. scopulorum 

 FF. Leaf segments 5-9, the segments and their divisions oblong to obovate- 

 cuneate. 

 G. Mature follicles viscid'pubescent. E. D. reticulatum 



GG. Mature follicles glabrous. (See F.) 

 EE. Leaves 2.5-5 era. wide; stem 3-6 dm. high. E. D. andersoni 



DD. Roots thickened, forming irregular tubers. 

 H. Plant pubescent throughout. E. B. simplex 



HH. Plant glabrous or nearly so. E. B. dlstichum 



CC. Flowers greenish. E. B. vlridescens 



BB. Most of the pedicels longer than the flowers and the fruit. 

 I. Mature follicles 6.5-12.5 mm. long. 

 J. Stem 1-7-flowered, only 1-3-leaved. C. E. B. depauperatum 



