Purple yam (Dioscorea)
Description
They are tuberous herbaceous perennial lianas, growing to 2–12 metres (6.6–39.4 ft) or more tall. The leaves are spirally arranged, mostly broad heart-shaped. The flowers are individually inconspicuous, greenish-yellow, with six petals; they are 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
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Liliopsida
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Order: Liliales
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Family: Dioscoreaceae
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Genus: Dioscorea
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