TREATMENT FROM THE JEPSON MANUAL	previous taxon | next taxon Jepson Interchange (more information)
	©Copyright 1993 by the Regents of the University of California Print edition is available from the University of California Press

	The second edition of The Jepson Manual (2012) is available from the University of California Press
	See also the Jepson eFlora, which parallels the Second Edition

CANNABACEAE

HEMP FAMILY

Elizabeth McClintock

Annual, perennial herb, generally dioecious, wind-pollinated; epidermis with hardened hairs, glands, etc.; sap watery
Stem erect or twining
Leaves palmately compound or lobed, petioled; lower generally opposite (upper often less lobed, alternate)
Staminate inflorescence: panicle or spike-like cluster, ± open
Pistillate inflorescence: spike-, cone-, or head-like cluster of often paired flowers, dense
Staminate flower: perianth parts 5, free; stamens 5; pistil 0
Pistillate flower: perianth parts fused into a short, unlobed tube or ring; stamens 0; ovary superior, chamber 1, ovule 1, style 1, very short, stigmas 2, thread-like, plumose
Fruit: achene, generally ± enclosed in persistent perianth
Genera in family: 2 genera, 3 species: n hemisphere; cultivated, economically important
Reference: [Mitchell 1988 NY State Mus Bull 464:17–23]