Inflorescence conical, terminal or axillary, with 5 perianth segments, deeply parted, white or light green, oval segments, different sizes, 3 larger outer segments, wings on the back, swollen when fruits are produced, and nearly round perianth segments with a diameter of 6-7 mm; 8 stamens, the lower part of filament is wider; Style 3, very short, stigma capitate.
Shrubbery in valleys, thickets on hillsides and cracks beside ditches at an altitude of 200-3000m is produced in southern Shaanxi, southern Gansu, eastern China, central China, southern China, Sichuan, Yunnan and Guizhou, and also distributed in Japan.
Extended data:
breeding method
Direct seeding is the main method, and seedlings can also be transplanted. Sow in early March to early April with a row spacing of 30-35cm. After applying human and animal manure, sow evenly in the ditch and cover with soil for 3 cm. The height of seedlings is 5cm and the spacing between plants is about 30cm.
From early March to early April, select stems and vines with vigorous growth, strong plants and no diseases and insect pests, and cut cuttings with a length of about 25cm, each cutting should be about 3 knots. The row spacing is 30-35 cm, the spacing between plants is about 30 cm, and the hole depth is about 20 cm. Put 2-3 tablets in each hole, and don't insert them backwards. Cover the soil tightly and apply human and animal manure.
Before germination in autumn or spring, dig out the sprouting tillers around the rhizosphere, select the stems and vines with sprouting eyes and the plants with good fibrous roots, and dig holes according to the row spacing of 30-35cm and the plant spacing of 25-30cm for planting.