Alias begonia purple-backed begonia, begonia purple-backed begonia, pig's ear, ground sand, pearl leaves, semi-umbrella, falling weight, rice grain, iron hat, chubby medicine, scary.

It comes from begonia fimbristipula. Orchidaceae, used as whole grass or tuber. It can be harvested all year round, fresh or dry.

The taste is bitter, sweet and flat.

Functions: clearing away lung-heat, relieving cough, invigorating spleen, promoting digestion, calming and relieving pain, clearing away heat and toxic materials, removing blood stasis and relieving swelling. Can be used for treating pulmonary tuberculosis, cough, hemoptysis, bronchitis, infantile malnutrition, infantile pneumonia, psychosis, traumatic injury, stomatitis, acute laryngitis and sore poison.

Usage and dosage: 1 ~ 2 yuan, with appropriate amount for external use, mashed fresh tuber and applied to the affected area.

Remarks: (1) Hernia pain caused by malnutrition in children: fresh tubers of Solanum nigrum 2 ~ 4 yuan, stewed with lean meat or eggs.