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Cannabaceae
See list of 3 genera in this familyReference: Mitchell (1988).
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1a. Plants tall shrubs or small trees; leaf blades simple, unlobed; fruit a drupe
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1b. Plants herbs or vines; leaf blades palmately lobed or palmately divided; fruit an achene
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2a. Leaf blades palmately lobed; stems vining, retrorsely spinulose; petioles with forked hairs; fruits concealed by large, accrescent bracteoles, collectively the infructescence appearing as “hops” [Fig. 542]
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2b. Leaf blades palmately divided; stems erect, not spinulose; petioles without forked hairs; fruits subtended, but not concealed, by accrescent bracteoles, the infructescence not appearing as “hops”
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Each photo represents one genus in this family.