Due to the medicinal effect and health care function of Eupatorium lindleyanum, the demand is increasing, but the quantity is decreasing. because

On the one hand, it's easy to find traces of wild Crotalaria in flowering period, so the capsules of Crotalaria are collected before maturity, which makes the species of wild Crotalaria increasingly scarce;

Secondly, due to the narrow distribution range of wild Gynura divaricata, its own characteristics lead to difficulties in cultivation and reproduction, coupled with extreme mining and environmental degradation, it is on the verge of extinction.