Zz 
SPHENOPHOLIS, wedge grass 
Sphenopholis nitida (Biehler) Scribner, shining wedge grass, 
138 
S. obtusata (Michaux) Scribner, wedge grass, p. 138 
var. major (Torrey) Erdman [S: S. intermedia Rydb.] 
(Erdman, 1965) 
var. obtusata [S: incl. var. Jobata (Trin.) Scribner] 
(Erdman, 1965) 
S. pensylvanica (L.) A. Hitchc., swamp oats [S: Trisetum 
pensylvanicum (L.) P. Beauv.] (Erdman, 1965), 
p. 139 
SPOROBOLUS, dropseed 
Sporobolus airoides (Torrey) Torrey, alkali sacaton, finetop 
Salt grass, p 
S. asper (Michaux) Kunth, rough dropseed, p. 164 
var. asper [S: incl. var. pilosus (Vasey) A. Hitchc., var. 
hookeri (Trin.) Vasey] (Riggins, 1977) 
var. drummondii (Trin.) Vasey 
S. clandestinus (Biehler) A. Hitchc. [S: incl. var. canovirens 
(Nash) Steyerm. & Kucera] (Riggins, 1977), p. 165 
S. cryptandrus (Torrey) A. Gray, sand dropseed, p. 1 
S. heterolepis (A. Gray) A. Gray, prairie dropseed, p. 165 
#S. indicus (L.) R. Br., smut grass [S: S. poiretii (Roemer & 
Schultes) A. Hitchc.] (Clayton, 1965), p. 165 
S. neglectus Nash, poverty grass, p-. 162 
S. ozarkanus Fern., Ozark dropseed [S: S. neglectus Nash var. 
ozarkanus (Fern.) Steyerm. & Kucera] (Reeder, 
1975), p. 164 
+S. pyramidatus (Lam.) A. Hitchc., whorled dropseed, p. 166 
S. vaginiflorus (Torrey) Alph. Wood, poverty grass [S: incl. 
var. inaequalis Fern.] (Hitchcock, 1950; Reeder, 
1975), p. 162 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
