婷婷成人精品视频在线观看,国产亚洲无码a在线视频,女人18毛片水真多69视频,日韩中文字幕第一页,日本h网站,亚洲人成网站77777·c0m,a及黄色视频免费网站

[product name]: Hamamelis extract
[English name]: root of Chinese witchhazel
[source]: it is extracted from root, leaf and flower of Hamamelidaceae.
[Specification]: 10:1 20:1 TLC
[appearance]: brown yellow powder
[shelf life]: two years
[package description]: double plastic bag plus cardboard barrel (25kg / barrel)

[about Witch Hazel]:
The branches of Hamamelis virginiana L. branch in a spiral position on the flexible branches. The whole oval leaf edge is serrated. In late autumn, the flowers bloom and cluster in the axils of leaves. The flower has four green sepals, four yellow petals, eight stamens, two single stamens and one embryo. The fruit is a small pod with the base enclosed in the calyx.
[Hamamelis original form]:
Hamamelis deciduous shrub or small tree, up to 8m high; branchlets with stellate hairs when young. Leaves alternate; petiole is 6-10 mm long, tomentose; stipules fall early; leaves are paper-based, wide obovate, 6-12 cm long, 3-7.5 cm wide, apex short and sharp, base heart-shaped, edge wavy teeth, light green above, short hair, dense gray star like villi below, side veins 7-9 pairs. Short spikes axillary, with several flowers; flowers bisexual; calyx short, calyx teeth 4, persistent, stellate hair; petals 4, yellow white, banded, about 1.5cm long; stamens 4, alternate with staminodes; ovary nearly superior, 2-locular, style 2, 1-1.5mm long, separated. Capsule ovoid, 1.2cm long and 1cm wide, densely covered with yellow brown stellate hairs. Seeds elliptic, about 8mm long, black, shiny. Flowering may, fruit ripening October.
[main ingredients of witch hazel]:
Bark: flavonol and concentrate; gallnut tannin: bark contains up to 7% Hamamelis tannin.