1. Isatis indigotica

Isatis indigotica is a biennial herb in Cruciferae, and its height can reach 1 cm; The stems are erect and multi-branched, the plants are smooth and hairless, the basal leaves are rosette-shaped, oblong to broadly oblanceolate, blue-green, oblong or oblong-lanceolate, and the basal auricles are inconspicuous or round. The roots (Radix Isatidis) and leaves of Isatis indigotica are used for medicine, and have the effects of clearing away heat and toxic materials, cooling blood and removing spots, relieving sore throat and relieving pain. Blue dye can also be extracted from leaves; Seeds are pressed for oil for industrial use.

2. Malan

Malan generally refers to Isatis indigotica, which belongs to Isatis of Acanthaceae. Herbs, perennial and once-fruiting, with erect stems or decumbent bases. Slightly lignified, about 1 meter high, usually branched in pairs, the young parts and inflorescences are covered with rust-colored and scaly hairs, and the leaves are soft, papery, oval or oval. Spikes erect, 1-3 cm long. Capsule 2-2.2 cm long, glabrous; Seeds ovoid, 3.5 mm long.

3. Isatis indigotica

Isatis indigotica is a panicum miliaceum of Isatis in Cruciferae, which is 5 cm high; Stems erect, branched from base, glabrous. Annual herb, up to 5 cm; Stems erect, branched from base, glabrous. Basal leaves are oblong, rounded at the top, with deeply wavy or toothed edges.

4. Isatis trifoliata

Isatis trifoliata, an annual or biennial herb of Isatis in Cruciferae, is 4-12 cm tall; The stem is erect, the upper part is multi-branched, glabrous, and slightly bluish cream. Basal leaves obovate-oblong, 8-14 cm long and 2-3 cm wide, entire or with inconspicuous serrations, subsessile; Cauline leaves are lanceolate, amplexicaul, entire, and all leaves are hairless or sparsely simple.

5. Isatis indigotica

Isatis indigotica is a biennial herb in Cruciferae, with a height of 3-8 cm. The taproot is thick, with a diameter of 5-1 mm and grayish yellow. The stem is erect, the upper part is much branched, hairless and slightly frosty. Basal leaves have long stalks, long oval leaves, tapering base and slightly sharp apex.

what are the above references? Baidu Encyclopedia-Isatis indigotica

Reference to the above contents? Baidu Encyclopedia-Ma Lan

Reference to the above contents? Baidu Encyclopedia-Isatis indigotica

Reference to the above contents? Baidu encyclopedia-three ribs blue

for reference? Baidu Encyclopedia-Isatis indigotica