6 o 
C01.0RAD0 Experiment Station 
and three-flowered nightshades are not a tempting food for animals, 
Avhich fact no doubt accounts for their being rated of so little conse¬ 
quence as poisonous plants. 
SAND BUR, BUFFAI/O BUR (Solaniiin rostratum) 
A low annual plant, (fig. 85) yellowish-green in color. The 
stems, leaf-stalks, flower stalks, and main veins of leaves are armed 
with stiff yellowish prickles. The deeply-lobed leaves are covered 
with hairs arranged in small star-shaped groups. The flowers are 
about I inch in diameter and yellow in color. The mature fruit is very 
prickly. Buffalo bur is a plant of sandy plains. 
Figs. 86 - 87.—Black henbane (Hyoscyamus niger) 86, leaves, pods, and fruit; 87, single 
pod, showing how it opens at the top by a lid. 
