Burdock grass, perennial herb, up to 35cm high, rhizome transverse, about 2mm thick, brown, densely packed with most of the fibrous roots, upward sending out a number of above-ground stems or stolons, above-ground stems usually several clusters, light green, longer internodes; stolons spreading, nodes with adventitious roots.

Basal leaves triangular-cordate or ovate-cordate, apex acute, sparsely acuminate, base usually cordate, margin sparsely serrate, 1.5-3cm long, 2-5.5cm wide, long-petiolate; cauline leaves similar to basal blades, with shorter petioles; stipules lanceolate, 5-10cm long, entire or very sparsely denticulate and ciliate.

Flowers lavender or white, solitary in leaf axils, long pedicellate, with 2 linear bracteoles above the middle of the pedicel; calyx ovate-lanceolate, with a very short semiorbicular basal appendage; petals narrowly obovate, with the lower petals shorter, with conspicuous dark purple stripes, and with a short spur at the base of ca. 2mm long.

Extended information:

Born in streams and valleys in moist places, swamps, and the margins of thickets and forests. It is distributed in Taiwan, Guangdong and Yunnan.

Planting burdock should choose the terrain to the sun, drainage and irrigation is convenient, deep soil, fertile loam or clay loam soil plots. Burdock taboo crop, should be practiced 3-5 years of crop rotation, the previous crop to cereal crops or leafy vegetables are more suitable.

After the plots were selected, the plough depth was 40-50 centimeters, and 2500-3000 kilograms of fully rotted stable manure or compost was applied per mu, mixed with 30 kilograms of calcium superphosphate and 20 kilograms of potassium chloride, turned into the soil, and raked flat. Do 2-3 meters wide (with ditch) raised beds, or 65-70 cm wide and 15 cm high high ridges.