Burdock is not an organ of the cow. Burdock is an herbal medicine as a plant. Burdock is not directly related to the cow as an animal. Burdock, also known as mountain burdock and old sow's ear, is native to China. Burdock can also be made into a tea to drink, burdock tea is a common health drink in Chinese medicine.

Morphological features of burdock

Two-year-old herb, with a thick fleshy taproot, up to 15 cm long, diameter up to 2 cm, with branched branch roots. Stem erect, up to 2 meters high, stout, base up to 2 cm in diameter, usually purplish or light purplish red.

Numerous elevated ribs, branches obliquely ascending, numerous, all stem branches sparsely papillate with short hairs and long arachnid hairs intermixed with small brownish-yellow glandular dots.

Basal leaves broadly ovate, up to 30 cm long and up to 21 cm wide, margins sparsely shallowly undulate concavely toothed or toothed, base cordate, with petioles up to 32 cm long, heterochromatic on both sides.

Green above with sparse short strigose hairs and small yellow glandular dots, grayish white or light green below, thinly tomentose or sparsely tomentose with small yellow glandular dots.

Petiole grayish white, densely spidery tomentose and yellow glandular dots, but often glabrescent in the middle and lower parts. Cauline leaves homomorphic or subhomomorphic with basal leaves, with equal and equal numbers of indumentum, those attached to the lower part of the inflorescence small, base truncate or shallowly cordate.