160 
Spring Flora of Oklahoma 
Pubescent; leaves ovate, 5-7 u lobed. 5. S. Torreyi. 
Berry partly or wholly invested by the spiny calyx; 
annuals. 6. S. restratum. 
Climbing vine, not prickly; leaves hastate or 3-lobed. 
7. S. Dulcamara. 
1. Solanum nigrum L. Deadly Nightshade. Annual, glab¬ 
rous or downy with simple hairs. Leaves ovate, irregularly-toothed 
or entire, somewhat inequilateral, petioled. Flowers in lateral, pe- 
duncled umbels, small, white, drooping. Calyx lobes obtuse. Corolla 
4"-6" wide. Filaments downy. Berries globose, smooth, black when 
ripe. 
In waste places. May-October. Common. 
2. Solanum triflorum Nutt. Cut-leaved Nightshade. Annual, 
sparingly pubescent or glabrous. Leaves pinnatifid or some of them 
pinnately-lobed, lobes entire or dentate. Flowers lateral. Calyx- 
segments persistent at the base of the berry. Corolla white, 4"-5" 
broad. Berries green when mature, globose, glabrous, about 5" in 
diameter. 
Prairies and waste places. May-October. 
3. Solanum carolinense L. Horse-Nettle. Perennial, finely 
stellate-pubescent with 4-8-rayed hairs, armed with straight, yellow 
prickles. Leaves ovate-oblong, deeply toothed or lobed, prickly on 
the veins. Racemes lateral, few-flowered. Calyx lobes taper-pointed, 
persistent at the base of the berry. Corolla lobes ovate-lanceolate, 
blue or white. Berries orange-yellow, globose, smooth, 8"-10" in 
diameter. 
In cultivated fields and waste places. May-September. Com¬ 
mon. 
4. Solanum elaeagnifolium Cav. Silver-leaved Nightshade. 
Perennial, densely and finely stellate pubescent, silvery-canescent all 
over. Sometimes armed with very slender, sharp prickles. Leaves 
lanceolate, or linear, l'-4' long, 3"-12" wide, repand-dentate, or en¬ 
tire. Flowers cymose, 8"-12'" broad, violet or blue. Berries globose, 
yellow or darker, 4"-6" in diameter. 
On dry plains and prairies. May-September. Common. 
5. Solanum Terreyi A. Gray. Terry’s Nightshade.. Peren¬ 
nial, pubescence stellate, hairs 8-12-rayed, more or less armed with 
small subulate prickles. Leaves ovate in outline, 3'-6' long, sinu- 
ately 5-7-lobed. Cymes loosely several-flowered. Flowers showy. 
Corolla violet. l'-lbroad. Berry globose, smooth and glabrous, 1' 
or more in diameter, yellow when ripe. 
On dry prairies. April-September. Oklahoma County. 
6. Solanum restratum Dunal. Buffalo Bur. Annual, the 
the whole plant beset with yellow prickles. Stem erect, diffusely 
