116 CHENOPODIACEAE (GOOSEFOOT FAMILY) 
bracts, which are united at base and often tubercled on their sides. 
Seed compressed, vertical; often an impurity of other seeds. 
(Fig. 70.) 
The plant is very variable; one of its forms, the Halberd-leaved 
Orache (A. patula, var. hastata, Gray), is more common than the 
type, ranging from the Great Lakes across the continent and south- 
ward to Nebraska and Utah. It is stouter, more erect, the leaves 
broadly halberd-shaped and often coarsely and irregularly toothed, 
particularly the lower ones, the petioles often as long as the blades. 
(Fig. 71.) These weeds are subject to the mildew so injurious to 
garden spinach and beets, and will infect those vegetables if grow- 
ing near them. Like the Goosefoots, their seeds retain vitality for 
a number of years when in the soil. 
Means of control 
Hand-pulling while in early bloom is the best remedy; cutting 
causes the stems to stool freely, and the new growth hastens to 
mature fruit, requiring attention a second time; so that prompt up- 
rooting saves trouble in the end. In cultivated crops these plants 
give little trouble, for there they are usually destroyed as seedlings. 
BUGSEED 
Corispérmum hyssopifolium, L. 
(Corispérmum nitidum, Kit.) 
Native. Annual. Propagates by seeds. 
Time of bloom: July to September. 
Seed-time: September to November. 
Range: Shores of the Great Lakes to the Northwest Territory and 
British Columbia, southward to Missouri, Texas, and Arizona. 
Habitat: Dry, sandy soil; grain fields, hoed crops, and grasslands. 
This is another of the plants that often become tumbleweeds when 
matute, which explains why its range extends from the Gulf of 
Mexico to the Arctic Circle. It is well. known also in Europe and 
Asia. 
Stems pale green, succulent and finely hairy when young, but 
becoming smooth, hard, and faintly ridged with age, often strongly 
zigzagged, very freely branched, six inches to two feet in length, 
