86 URTICACEAE (NETTLE FAMILY) 



perianth but have six to eight stamens and a one-celled ovary, 

 sunk in the fleshy rachis of the spike and having three or four 

 spreading stigmas ; each flower is subtended by a minute white 

 bract. The whole plant has a very pungent, spicy odor. Fruit a 

 berry or capsule, with three to four carpels each containing six to 

 ten very small rounded seeds. (Fig. 46.) 



Means of control 



Drainage ; followed by intensive hoe-cultivation, alternated 

 with heavy seeding to grass or clover. 



HEMP 



Cdnnabis saliva, L. 



Introduced. Annual. Propagates by seeds. 

 Time of bloom: July to September. 

 Seed-time: August to November. 



Range: New Brunswick to On- 

 tario and Minnesota, southward 

 to North Carolina, Tennessee, 

 and Kansas. 



Habitat: Barnyards, waste 

 places. 



Seeds of hemp are often an 

 impurity of other seeds, notably 

 of oats, particularly if grown in 

 the hemp-raising districts of the 

 country. The writer first saw 

 the plant flourishing finely in a 

 vacant lot behind a city livery 

 stable. (Fig. 47.) 



Stem three to ten feet in height, 

 rather stout, erect and holding 

 its branches nearly upright, the 

 inner bark fibrous and extremely 

 tough and strong, the whole 

 plant rough-hairy and strong- 

 FIG . 47. -Hemp '(Cannot *,). scented - Leaves compound, with 

 x j. five to seven very slender leaflets, 



