Marijuana, Hemp

(Cannabis sativa L.)

Cannabaceae (Hops Family, Hemp Family)

▲ ▼ seedling hemp plants

▲ young hemp plant

▲ colony of wild hemp alongside road in Nebraska

▲ mature hemp plant

▲ leaves, and stem ▼

▲ male flowers, and female flowers ▼

 

Marijuana  (pp. 234-235, Weeds of the Great Plains—not in Weeds of the Northeast) 

• not technically a difficult-to-control weed, but control of marijuana is required by law due to narcotic content

• cultivated worldwide for fiber or drug use

• herbaceous, monoecious or dioecious annual plant

• has palmately compound, serrated edge leaves

• leaflets have deeply indented veins

• not naturally prolific or invasive, prefers rich, moist soils