Walnut kernel

Walnut kernel

(records of yam planting in Tianmu, Zhejiang)

[source] it is the kernel of Juglans regia.

[plant morphology] wild walnut, also known as hickory, wild walnut.

Deciduous tree, 15-25m high. Branchlets with brown lenticels, glandular hairs and stellate hairs, pith loose into thin sheet. Leaflets 9-17, sessile, ovate or ovate oblong, 8-15 cm long and 3-7.5 cm wide, apex short, base round or subcordate, margin serrate, sparsely covered with stellate hairs above and densely covered with stellate hairs below. The flowers are unisexual, monoecious; the male flowers are dense, slender and drooping catkin, 20-30 cm long, perianth 4, stamens 10-14, without filaments, anthers 2-chambered; the female flowers 6-10, panicle, 20-25 cm long, perianth 4, short style, stigma 2-lobed, villous. Drupe ovoid, 3-4 cm long, apex pointed, exocarp fleshy, densely covered with glandular hairs: nucleus ovate, with 6-8 edges. The flowering period is April. The fruiting period is October.

On either side of a hill or valley. It is distributed in Jiangsu, Zhejiang, Anhui, Jiangxi, Hunan, Hubei, Sichuan, Yunnan, Guizhou, Gansu, etc.

[collection] in October, the fruits are harvested when they are ripe and piled up for 6-7 days. After the pericarp is moldy, wipe off the pericarp, wash it, and sun dry it until it is half dry, then smash the core, pick the kernel, and sun dry it.

[chemical constituents] the kernel contains 40-50% oil, 15-20% protein, sugar, vitamin A, B, C, etc. The bark and exocarp contain a lot of tannins.

[nature and taste] it is warm and smooth in nature and sweet in taste.

[function indications] Zhongren: Nourishing Qi and blood, moistening dryness and resolving phlegm, benefiting life gate, benefiting Sanjiao, warming lung and moistening intestine. Treatment of deficiency cold cough, lower limb pain. Oil: for under the slow agent, can drive away tapeworm: external treatment of skin scabies, chilblain, bromhidrosis.

[selected formula] for lumbago: wild walnut (fried) five to six Liang. Smash the wine washing clothes. (nature and taste are listed in the records of yam planting in Tianmu, Zhejiang Province)