Physical description. Yam plants have thick tubers (generally a development of the base of the stem) which often have thick, almost barklike skin. The long, slender, annual, climbing stems bear lobed or entire leaves that are either alternate or opposite. The unisexual flowers are borne in long clusters. 9 мая 2022 г.
What is the general classification of yam?
SuperorderLilianae – monocots, monocotyledons, monocotylédonesOrderDioscorealesFamilyDioscoreaceae – Yam FamilyGenusDioscorea L. – yamSpeciesDioscorea alata L. – winged yam, water yam
What are the two types of yams?
Two types of yams dominate the West Africa starchy vegetable group — the white guinea yam (D. rotundata) and the yellow guinea yam (D. cayenensis). Both are large, weighing about 4 to 6 pounds.
What conditions do yams grow in?
Yams require a fertile, well-drained soil with a high organic matter content. Plant at the beginning of summer in areas that receive a wet season. They will grow in full sun or semi-shade but need a trellis. Plants need plenty of water during the growing season.
Is a yam an animal?
In the United States, the name yam is often misapplied to the sweet potato (Ipomea batatas). Yams are herbaceous plants whose stems twine up and around bushes, trees, or poles.
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