Biennial herb, 40-100 cm high. The stem is erect, strong, and branched. Feed: Flowering is more than half a month earlier than other varieties. Alkaline-tolerant soil is common pasture. Medicinal: harvest the medicinal part from the ground. The taste is slightly sweet, the nature is flat, and it belongs to the spleen and large intestine meridian. It has the effects of relieving cough, relieving asthma, dispelling masses, and relieving pain. Mainly used for asthma, bronchitis, intestinal colic, trauma, lymph node swelling and pain, etc.
