Family Cannabaceae
Description: Erect or twining herbs, frequently woody at base.
Leaves opposite or alternate, palmately compound, or simple and commonly palmately lobed or rarely unlobed, regularly toothed.
Inflorescence axillary, paniculate to cymose. Flowers unisexual, plants mostly dioecious. Male flowers pedicellate, perianth 5-lobed, stamens 5, erect in bud. Female flowers sessile, perianth undivided, cupular; ovary 1-locular; stigmas 2.
Fruit an achene.
Distribution and occurrence: World: 11 genera, 170 species, worldwide. Australia: 5 genera, ca. 15 species, all States.
External links:
Angiosperm Phylogeny Website (Family: Cannabaceae, Order: Rosales)
Wikipedia Edited by H. Sauquet (Jan 2019: circumscription, occurrence, and key, not description); note that several genera of Cannabaceae (incl. Aphananthe, Celtis, and Trema) were previously included as members of Ulmaceae here (PlantNET) and in the Flora of Australia (1989)
Text by G. J. Harden
Taxon concept: Angiosperm Phylogeny Group / Australian Plant Census (2018)
| | Key to the genera | |
| 1 | Climbers or erect herbs, leaves palmately compound or deeply lobed (rarely unlobed), fruit an achene | 2 |
| Trees or shrubs, leaves simple, not deeply lobed, fruit a drupe | 3 |
| 2 | Climbers; leaves simple, palmately lobed or rarely unlobed | Humulus |
| Erect herbs; leaves palmately compound
Back to 1 | Cannabis |
| 3 | Leaves toothed, the veins ending in spinose teeth; leaves mostly strictly pinnately veined, rarely 3-veined from base | Aphananthe |
| Leaves either entire or toothed but teeth not spinose; leaves 3-veined from base, secondary veins usually extending at least midway up the lamina
Back to 1 | 4 |
| 4 | Lower surface of leaves not scabrous, margins entire or toothed | Celtis |
| Both surfaces of leaves scabrous, margins toothed
Back to 3 | Trema |
|
