251 
ARISTIDA, three-awn 
Aristida adscensionis L., sixweeks three-awn, p. 172 
A. basiramea Engelm. ex Vasey, forktip three-awn, p. 171 
A. dichotoma Michaux, churchmouse three-awn, p. 171 
var. aurre A. Gray [G: A. basiramea var. curtissii (A. 
Gray) Shinn.; M: A. curtisii (A. Gray) Nash] (Allred, 
986 
var. dichotom 
A. lanosa Muhlenb. ex Elliott, woollyleaf three-awn, 
174 
p. 
A. longespica Poiret, slimspike three-awn, p. 1 
var. geniculata (Raf.) Fern. [S: incl. A. ance Scribne 
& all; M: A. glauca (Nees) Walp.] (Shinners, "1954; 
Allred, 1985) 
var. longespica 
A. oligantha Michaux, prairie three-awn, old field three-awn, 
172 
Pp. 
A. purpurascens Poiret, arrowfeather, p. 174 
A. ramosissima Engelm. ex A. Gray, slender three-awn, S-curve 
three-awn, p. 17 
ARRHENATHERUM, oat grass 
*Arrhenatherum elatius (L.) J. S. & C. Presl, tall oat grass, 
p. 140 
Ssp. elatius 
ARTHRAXON 
*Arthraxon hispidus (Thunb.) Makino, P- 
var. hispidus [incl. var. Rison’ Faas Honda] 
(Kiger, 1971; Christ, 1 
ARUNDINARIA, cane 
€3! 
Arundinaria gigantea (Walter) Mublenb., giant cane, P 
: . nbrock 
S: Steyermark G: Great Plains Flora M: Mohle 
