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Hemp family
Cannabaceae
アサ科
A family of about 11 genera and 170 species including Cannabis, Humulus, Celtis, and Aphananthe. Under APG IV, groups formerly separated from Ulmaceae were merged here. In Japan, the family includes deciduous trees like Celtis and Aphananthe as well as the fiber crop Cannabis.
Key Characteristics
- ●Diverse in habit from herbs to large trees
- ●Leaves alternate, serrate, often with asymmetric bases
- ●Flowers small, unisexual, apetalous
- ●Dioecious or monoecious
- ●Drupes or achenes
Morphological Traits
A family may include species with different trait values — multiple values indicate the range within the family.
Leaf arrangement
Alternate / Opposite
Leaf type
Simple / Compound
Venation
Pinnate / Palmate
Leaf margin
Serrate / Dentate
Growth form
Tree / Shrub / Herb / Vine
Evergreen/Deciduous
Deciduous
Compound type
Palmate
Leaf dissection
Dissected / Undivided
Stipules
Present
Latex
Present / Absent
Flower symmetry
Actinomorphic
Petal count
4 petals / 5 petals
Petal fusion
Free
Ovary position
Superior
Plant sex
Dioecious / Monoecious
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Rosids > Rosales > Cannabaceae
Divergence Era
Paleogene (approx. 55–50 million years ago)
Representative Genera
Related Evolution Events
- ・Familial reorganization and merger from Ulmaceae and Moraceae relatives under APG IV
- ・Evolution of the tetrahydrocannabinol (THC) biosynthesis pathway in Cannabis
Plants in Hemp family on this site
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