TRILLIUM, trillium, wake robin 
Trillium flexipes Raf., white trillium, white wake robin, 
drooping trillium [G: T. gleasonii Fern.] (Fernald, 
1944), p. 447 
. flexipes 
T. nivale Riddell, snow trillium, dwarf white trillium, 
447 
p. 
T. pusillum Michaux, Ozark wake robin, p. 448 
var. ozarkanum (E. J. Palmer & Steyerm.) Steyerm. 
T. recurvatum Beck, purple trillium, bloody butcher, purple 
wake robin [S: incl. f. foliosum Steyerm., f. 
petaloideum Steyerm.] (Freeman, 1975), p. 446 
f. recurvatum 
f. shayi E. J. Palmer & Steyerm. 
T. sessile L., wake robin, toadshade, p. 444 
f. sessile 
f. viridiflorum Beyer [M: T. sessile] (Freeman, 1975) 
T. viride Beck, green trillium, p. 444 
T. viridescens Nutt. green trillium [S: 7. viride] (Freeman, 
5), p. 444 
UVULARIA, bellwort 
Uvularia grandiflora Smith, large bellwort, bellwort, p. 424 
U. sessilifolia L., small bellwort, p. 424 
VERATRUM, false hellebore 
Veratrum woodii Robb., false hellebore, p. 423 
YUCCA (see AGAVACEAE) 
ZIGADENUS, death camas 
Zigadenus elegans Pursh, white camas, p. 422 
Z. nuttallii A. Gray ex S. Watson, death camas, p. 422 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
