38 - Cannabaceae
from Division 5 - Magnoliophyta
Summary
Annual or perennial, usually dioecious herbs. Leaves alternate or opposite, palmately lobed to more or less palmate, with stipules. Flowers small and inconspicuous, hypogynous, actinomorphic. Perianth small to more or less absent, of one whorl of 5, completely or partly, fused segments. Male flowers with 5 stamens. Female flowers with a 1-celled ovary with 1 ovule and 2 styles. Fruit an achene subtended by a persistent bract.
Contains 2 genera with 3 species in the northern hemisphere, which are much cultivated.
Erect annual; at least the upper leaves alternate 1. Cannabis
Rampant perennial climber; leaves all opposite 2. Humulus
Cannabis L.
Like family.
Contains one species native in south and west Asia but cultivated and naturalised widely elsewhere.
- Type
- Chapter
- Information
- Flora of Great Britain and Ireland , pp. 306 - 308Publisher: Cambridge University PressPrint publication year: 2018