154 
OENOTHERA, evening primrose 
(see also CALYLOPHUS) 
Oenothera biennis L., common evening primrose [S: incl. v: 
erred ge & Bartlett) Wieg.] (Raven et ms 
979), p 
“2. i W. Dietr., en & W. L. Wagner (Dietrich & 
Wagner, 1988) 
O. fruticosa L., ne shrubby sundrops, p. 1104 
Ssp. fruticosa [S: O. fruticosa var. linearis (Michaux) S. Watson] 
(Straley, 1977) 
ssp. glauca (Michaux) Straley [S: O. tetragona Roth var. hybrida 
ichaux) Fern.] (Straley, 1977) 
+O. grandiflora L’Her. ex Aiton, p. 1102 
O. grandis (Britton) Smyth, cut-leaved evening primrose [S: O. 
laciniata var. grandiflora (S. Watson) ‘varie 
(Dietrich and Wagner, 1988), p. 110 
*#O. heterophylla Spach (Mihlenbach, 1983; Fide and Wagner, 
Ssp. heterophylla 
O. Sil iy Gpach) Munz, see excluded taxa 
O. laciniata Hill, esdniguien evening primrose, ragged evening 
1102 
primrose, p. 
O. linifolia Nutt., sundrops thread-leaved sundrops, p. 1104 
oO rocarpa Nutt., Missouri primros e [S: O. missouriensis Sims] 
(Wagner, 1981), p. 1105 
Ssp. mac 
3 perennis rae sundrops, small sundrops, p. 1105 
O. pilosella Raf., sundrops, prairie sundrops, 04 
Ssp. pilosella_ [S: incl. f. laevigata E. J. Pitnier & Steyerm.] 
traley, 197 
oO. Seis sigee Nutt. ex Torrey & A, Gray, sand primrose, 
102 
p. 
O. speciosa Nutt., white evening primrose, showy evening primrose, 
. 1105 
S: Steyermark ¢: Great Plains Flora M: Mohlenbrock 
