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Flax

Also known as crow flax, flax rice, Shanxi flax, mountain fat flax, flax flax, and flax. Chinese Pinyin ya ma English name Stem and leaf of Common Flax, Common Flax, Flax medicinal material is originally the roots, stems and leaves of the flax plant of the Linaceae family. Animal and plant forms Flax is an annual erect herb, 30-100cm tall or more. The whole plant is hairless. The stem is cylindrical, with vertical stripes on the surface, about 4mm in diameter at the base, slightly lignified, and multi-branched in the upper part. The leaves are alternate; sessile or nearly sessile; the leaves are lanceolate or linear-lanceolate, 1-3cm long, 2-5mm wide, apex acuminate, base attenuate, entire margin, and the leaves usually have three veins. There are many flowers, which are born on the top of branches or upper leaf axils. There is one flower in each leaf axil, about 15mm in diameter. The flower stalk is thin and about 2cm long. The calyx is 5, green, separate, oval, about half the length of the petals. The petals are 5, blue. Color or white, separated, broadly obovate, about 10mm long, 7mm wide, with slightly wavy edges; stamens 5, anthers linear; ovary superior, 5-loculed, styles 5, linear, separated, about 4mm long. Capsule is nearly spherical or slightly flat, 5-7mm in diameter. The seeds are oval, 4-6mm long, about 2mm wide, one end is slightly pointed and slightly curved, and the surface is yellowish brown and shiny. The flowering period is from June to July, and the fruiting period is from July to September.