172 
ANEMONELLA 
Anemonella thalictroides (L.) Spach, rue anemone [M: Thalictrum 
thalictroides (L.) Eames & J. Boivin] (the separation of 
this genus from Thalictrum and Anemone is 
controversial and requires further investigation; see 
Keener (1976a) and Mitchell and Dean (1982) for 
conflicting viewpoints), p. 7 
f. chlorantha Fassett 
f. favilliana Bergseng ex Fassett 
f. thalictroides 
AQUILEGIA, columbine 
Aquilegia canadensis L., columbine, wild honeysuckle, p. 678 
4 flavifiora (Tenney) Britton 
CALTHA, marsh marigold 
*Caltha palustris L., marsh marigold, cowslip (Gremaud, 1988) 
var. palustris 
CIMICIFUGA 
Cimicifuga racemosa (L.) Nutt., black cohosh, black snakeroot, 
p. 674 
CLEMATIS 
*Clematis catesbyana Pursh, virgin’s bower (Essig, 1990) 
. crispa L., swamp leather flower, blue jasmine, p. 708 
fremontij tigi Frémont’s leather flower [S: incl. var. 
nehlii R. O, Erickson] (Keener, 1967), p. 708 
Cc. pitcheri Torrey & A. Gray, leather flower, bluebell, p. 708 
var. pitcheri 
*C. terniflora DC,, virgin’s bower [S: C. dioscoreifolia A. Léveillé 
& Vaniot var. dioscoreifolia} (Hara, 1975; Keener, 
1978), p. 706 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
