175 
*+Ranunculus ficaria L., lesser celandine (Yatskievych and Figg, 
1 
var. bulbifera Marsden-Jones 
R. flabellaris Raf., yellow water crowfoot [S: incl. f. riparius Fern.] 
(Bostrack and Millington, 1962), p. 
R. —— “ — Britton, Harvey’s buttercup, p. 690 
f. h 
£. nero (Benke) E. J. Palmer & Steyerm 
R. hispidus Michaux, hispid buttercup, swamp buttercup, p- 696 
var. caricetorum (E. Greene) T. Duncan [S, M 
septentrionalis Poiret var. caricetorum (E. a 
Fern.] (Duncan, 1980) 
var. hispidus [S: incl. var. marilandicus (Poiret) L. Benson] 
var. nitidus (Elliott) T. Duncan [S: R. septentrionalis, incl. var. 
rocarpus L. Benson; M: R. septentrionalis vat. 
septentrionalis] (Duncan, 1980) 
R. laxicaulis (Torrey & A. Gray) Darby, water plantain, spearwort, 
p- 687 
R. longirostris Godron, white water crowfoot, p. 687 
R. micranthus Nutt. ex Torrey & A. Gray, p. 688 
var. delitescens (E. Greene) Fern. [M: R. micranthus] (the 
validity of this taxon requires further study; see S: for 
) 
¢R. parviflorus L., small-flowered crowfoot, p. 698 
R. pusillus Poiret, low spearwort, p. 687 
R. recurvatus Poiret, hooked crowfoot, p. 692 
f. recurvatus 
+R. repens L., creeping buttercup, p. 693 
var. degeneratus Schur [S, M: var. pleniflorus Fern.] (Mitchell 
and Dean, 1982) 
var. repens 
*R. sardous Crantz, p. 698 
R. sceleratus L., cursed crowfoot, p 
var. sceleratus [incl. f. natans Suey (Doolen, 1984; Mitchell 
and Dean, 1982) 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
