Everything about Dioscorea totally explained
Dioscorea is a genus of over 600 species of
flowering plants in the family
Dioscoreaceae, native throughout the
tropical and warm
temperate regions of the world. The vast majority of the species are tropical, with only a few species extending into temperate climates.
They are
tuberous
herbaceous perennial lianas, growing to 2-12 m or more tall. The
leaves are spirally arranged, mostly broad heart-shaped. The
flowers are individually inconspicuous, greenish-yellow, with six petals; they're mostly
dioecious, with separate male and female plants, though a few species are
monoecious, with male and female flowers on the same plant. The
fruit is a
capsule in most species, a soft
berry in a few species.
Several species, known as
yams, are important
agricultural crops in tropical regions, grown for their large tubers. Many of these are toxic when fresh, but can be detoxified and eaten, and are particularly important in parts of
Africa,
Asia, and
Oceania (see
yam article).
Selected species
The closely related genus
Tamus is included in
Dioscorea by some botanists; for
Dioscorea communis (L.) Caddick & Wilkin, see
Tamus communis .
Further Information
Get more info on 'Dioscorea'.
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