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Specimen profile
Purple Yam
Dioscorea alata · Dioscoreaceae
Skt · Raktalu — “The tuber displaying a rich red or purple hue”Hindi · RataluMal · KavathuTam · Valli Kizhangu
An anthocyanin-dense climbing yam that nourishes tissues and pacifies Vata.
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Dioscorea alata is an extensive twining climber with quadrangular winged stems and large heart-shaped opposite leaves. The subterranean tubers range from oblong to branching shapes, famous for their vivid magenta or violet-tinted flesh. Highly regarded in Rasayana and pathya (dietetics), it offers substantial energizing, bowel-stabilizing, and restorative qualities.
Identification markers
Climbing vine with distinct 4-winged green or purplish stems; opposite cordate leaves; large subterranean tuber with vivid purple flesh.
Rasa
Madhura
Guna
Guru, Snigdha
Virya
Sheeta
Vipaka
Madhura
Prabhava
Brimhana
Dosha effect
VP- K+
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