Red poplar

Red poplar

(Chinese herbal medicine earth method war preparation album)

[synonym] muposhu, papaya and shuidongguo.

[source] it is the tender branches, leaves and bark of Populus densiflora.

[plant morphology] Populus tomentosa

Deciduous trees, up to 20 m high. The bark is light purple brown, rough and irregularly cracked; the annual branches are light ochre brown, smooth and glabrous, the biennial branches are brown and slightly light; the lenticels are obvious, gray white. Leaves alternate, elliptic to obovate elliptic, apex acuminate or cuspidate, base cuneate, 6-12 cm long, 3.5-5 cm wide, margin acutely serrate, petiole grooved. The flowers are unisexual, monoecious, and the first leaves are open; the male flowers are catkins; the female flowers are spikes. Ears ovate, dark brown, about 2 cm long, 1-4 on stout stipes. Nutlets broadly elliptic to obovate, narrowly winged. It blooms in early spring. The fruit ripens in July.

It is found in valleys, rivers and hillsides. Distributed in Northeast, Shandong, Jiangsu, Guangdong and other places.

[collection] harvest in spring and autumn.

[chemical constituents] it contains a variety of triterpenoids, such as lupanone, α - vanillin, β - vanillin, myrcenol, taraxanol, betulinic acid and so on, as well as β - sitosterol, eicosane, aliphatic alcohol and pyrocatechol tannin.

[flavor] bitter and astringent, cool.

[function indications] clearing away heat and reducing fire.

[prescription selection] 1. The treatment of nosebleed is more than one. Deep fried, mixed with sugar.

② Prevention of watery diarrhea: the tender branches of Populus tomentosa are soaked in boiling water for tea.

③ Treatment of traumatic bleeding: aspen bark grinding powder external application, or fresh product mashed external application. (the following is the Chinese herbal medicine earth method war preparation album)