ROSACEAE (ROSE FAMILY) 217 
often more than two inches broad, occasionally solitary but usually 
growing in open corymbose clusters. Hips globular, smooth, about a 
half-inch in diameter, crammed withhard, hairyachenes. (Fig. 156.) 
Means of control 
Tf the plants are young and few, grub out the colonies, securing, 
if possible, every shred of the rootstocks; in ground rankly infested, 
cut the stalks from the rootstocks with a very sharp-bladed plow 
in the hot days of July. New shoots will promptly appear, which, 
at intervals of not more than two weeks — ten days would be 
better — must be disked, or cut off with a sharp and broad- 
bladed cultivator, in order to keep leaf growth from feeding the 
rootstocks. Next season put in a cultivated crop of which the 
tillage will constantly keep the shoots cut off, and so starve the 
underground stems. 
WILD BLACK CHERRY 
Primus serétina, Ehrh. 
Native. Perennial. Propagates by the stones, or pits. 
Time of bloom: May to June. 
Seed-time: A drupe, ripe in August and September. 
Range: Nova Scotia to Florida, westward to the Dakotas and 
Arizona. 
Habitat: Woodlands, and also common along fence rows, roadsides, 
and waste places. 
The Black Cherry is often a large tree and a most valuable one 
to dealers in fine cabinet-making woods. It has reddish brown 
twigs, with somewhat bitter, aromatic, inner bark. The leaves are 
somewhat thick in texture, smooth and shining on the upper side, 
broadly Iance-shape to oblong, taper-pointed, the teeth incurved 
and short. The flowers are white and grow in elongated terminal 
racemes; the fruits which follow are purplish black drupes, 
slightly bitter but pleasant to the taste. 
It is not the mature tree that must be placed on the list of noxious 
plants, but its numerous progeny of young shoots which spring 
up everywhere about the country. Birds are very fond of the 
juicy fruits and eat great quantities, voiding the stones along 
fence rows and telephone lines, with the result that those land- 
