Rattus rectangularis

Rattus rectangularis

(records of yam planting in Tianmu, Zhejiang)

[synonyms] jiguchai, niufutong (Zhejiang Tianmu yam Zhi Zhi), laochawang, huashuci (Jiangxi herbal medicine manual).

[source] it is the root and flower of Saxifragaceae.

[plant morphology] Rattus rectangularis

Evergreen shrubs, 2-4 meters high or above. Leaves alternate, thin leathery, obovate or oblong obovate, 6-10 cm long, 2-4.5 cm wide, apex short acuminate, base cuneate or broadly cuneate, glabrous on both sides, margin sparsely serrate; petiole 1.5-2 cm long. Raceme axillary, 8-11 cm long, with leafy bracts; flowers white, ca. 4 mm in diameter; calyx 5-lobed, triangular, persistent; petals 5-valvate, obliquely lanceolate; stamens 5-longer than petals; ovary superior, 2-locular, stigma slightly 2-lobed, sparsely 3-lobed. Capsule 5-8 mm long, 2-valved, almost completely separated. The flowering period is from May to June. The fruit period is from September to October.

It grows in the side of the valley or the roadside of the mountain. It is distributed in Zhejiang and the south of Anhui to the south of Sichuan.

[collection] harvest in summer and autumn.

[function indications] "Zhejiang Tianmu yam Zhi Zhi": "as a tonic, two to three liang of rectangular leaf rat thorn root, decocted with white horse bone (Rubiaceae, June snow), once in the morning and once before dinner. Treatment of cough and sore throat: rectangular leaf rat thorn dry spend six to seven money, decoction, red rice wine, add sugar, daily morning, before dinner each time.