Morphological characteristics and suitable environment of Polygonatum polygonatum
[morphological characteristics]
Herbs perennial, 30-120 cm tall. The whole plant is hairless. The rhizome is yellowish-white, slightly sweet, fleshy, horizontal, connected by several parts shaped like a chicken head and become a large head and small tail, one end of the stem is more hypertrophy, leaving round stem marks such as corns, nodes are obvious, and the nodes have a few roots. Stem simple, slightly curved, Terete. Leaves usually 4-5 whorled, sessile; leaf blade striate-lanceolate, apex curled, gray below, main veins parallel, central veins stout raised below. Flowers axillary, white-green, pendulous, umbels, total pedicels long, apical often 2-branched, 1 flower each. Berries globose, black when ripe. The flowering period is from May to June and the fruiting period is from June to July.
[suitable environment]
Like Yin and dampness, cold-tolerant, seedlings can survive the winter in the open field. It grows poorly in dry areas and grows well in moist and shady conditions. The loam with deep, fertile, loose, good drainage and water retention is better. It is not suitable for planting in sticky or over-dry and barren plots. Rhizoma Polygonatum is mainly produced in Shaanxi, Henan, Shanxi, East and South China and other regions.
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Varieties and varieties of Polygonatum polygonatum
According to different characters, Rhizoma Polygonatum commodities can be divided into three categories: "chicken head Huang Jing", "ginger shaped Huang Jing" and "rhubarb essence". Polygonatum polygonatum is irregularly conical, with a large head and a thin tail, similar to the chicken head. Long 3~10cm, diameter 0.5~1.5cm. The surface is yellowish white to yellowish brown, translucent, all with fine wrinkles and slightly raised wavy links, the aboveground stem scar is disc-shaped, the center is often sunken, and the root scar is mostly punctate. The cross section is light brown, slightly horny, and has many yellow-white punctate veins (vascular bundles). Slight, sweet and sticky
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Propagation and cultivation of Polygonatum polygonatum
Propagation method: propagate with rhizome and seed, mainly by rhizome propagation. 1. Select deep, fertile, loose and moist loam for soil selection and preparation. Apply rotten compost or barnyard manure 2500kg every 667m2, turn 25~30cm deeply, and then fine and level it to make a border 1.2m wide. 2. Rhizome propagation in late autumn or early spring in late March, dig out the underground rhizome and cut it into segments with 2 or 3 nodes and let it dry for half a day or 1 day to make the wound heal. Ditch according to row spacing 20~25cm, ditch depth 6cm, according to plant spacing 10: 15
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