174 
(Hepatica nobilis, continued) 
var. obtusa (Pursh) Steyerm., round-lobed hepatica, round-lobed 
iverleaf 
f. candida (Fern.) Steyerm. 
f. obtusa 
HYDRASTIS 
Hydrastis canadensis L., golden seal, p. 674 
ISOPYRUM 
Isopyrum biternatum (Raf.) Torrey & A. Gray, false rue anemone, 
p. 683 
MYOSURUS, mousetail 
Myosurus minimus L., p. 699 
RANUNCULUS, crowfoot, buttercup 
Ranunculus abortivus L., small-flowered crowfoot, early wood 
buttercup, p. 688 
var. abortivus 
var. indivisus Fern. 
*R. acris L., tall buttercup, p. 692 
var. acris 
+R. arvensis L., Pp. 698 
*R. bulbosus L,, bulbous buttercup, p. 693 
Ssp. bulbosus 
R. cymbalaria Pursh, Seaside crowfoot, shore buttercup [S: incl. f. 
hebecaulis Fern,] (the validity of this 
p. 
R. fascicularis Muhlenb. ex Bigelow, early buttercup, prairie 
buttercup [S: incl. var. apricus (E. Greene) Fern.] 
1980), p. 697 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
