Hemp Family
3 genera
3 species
2 subspecies and varieties
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Cannabis sativahemp, marihuana
Distribution: Introduced in much of the United States
Habitat: Illegal plantings in openings in the forests
Origin: Introduced
Flowers: June - September
Growth Duration: Annual
Celtis reticulatanetleaf hackberry
Distribution: Primarily along the Columbia River and Snake River in Washington; Washington south to California, east through Southern Rockies to Kansas, Oklahoma and Texas.
Habitat: Open slopes and rocky bluffs.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
Humulus lupulus
Distribution: Occasionally escaping from cultivation, but rarely becoming established in Washington; occasionally escaped from cultivation in many areas in North America.
Habitat: Waste ground.
Origin: Introduced
Flowers: July-August
Growth Duration: Perennial
var. neomexicanus – hops