Name: Hairy Potato? (Nanning City Drug Journal)

Latin name: Dioscorea?alata?L. (original plant seng yam)

Synonyms: fire yam, seng yam, Li-dong yam, big yam, yam (Guangzhou Botanical Records), footboard yam, chicken nest yam (Nanning City Drug Journal), red hairy yam (Guangxi Pharmaceutical Plant Directory).

Origin: The tuber of Samphire Potato (Dioscoreaceae).

1) Variety Source. Yanbian County, Sichuan Province, local varieties.?

② Characteristics. Stem four-angled, winged, green. Leaves are anterior, entire, abaxial leaf veins ribbed, leaf surface with hairy. Petiole is about 10 cm long and 0.3 cm wide. The tubers are irregularly pedunculated, with light dark brown outer skin and white flesh. The single tuber weighs about 2 kilograms. The tubers are crisp, tender and smooth with good quality. About 190 days from planting to harvesting, heat-resistant, drought-resistant, not cold-resistant, not flood-resistant. Resistant to storage and transportation. Yield about 2500 kilograms per mu.?

3 Cultivation points. The local use of zero Yu son or tuber propagation. late March germination seedlings after planting, row spacing 70 cm, plant spacing 40 cm. The first half of October, harvested.

Botanical form: Sen yam? Perennial twining herb. Tubers fleshy, up to 60 cm long, in a variety of shapes and colors. Stem sharply quadrangular or 4 narrowly winged, smooth and glabrous. Leaves opposite; leaf axils often with zero remaining seeds; leaf blade cordate-ovate to cordate-oblong, lobes suborbicular, 8 to 16 cm long. 5 to 8 cm wide, apex sharply acuminate, base cordate, with 7 to 9 veins. Male inflorescences axillary, narrowly conical, 20-30 cm long; flowers light green, alternate on short spikes in "Z"-shaped, clustered, racemelike inflorescences, 1-1.5 mm long; female inflorescences simple spikes. Capsule leathery, ellipsoid, 3-winged. Flowering period July to August. Fruiting August to September.