Investigation and exploitation of the wild poisonous vascular plant resources in Southern Henan Province.

The wild poisonous vascular plant resources in Southern Henan Province were investigated.The resource characteristics,present situation and existing problems of exploitation were analyzed and the using methods of the wild poisonous vascular plant resources were discussed.The result showed that there were about 131 species belonging to 104 genera in 59 families in this area.Among them,5 species belonged to fern,one species belonged to gymnosperm and 125 species belonged to angiosperm.The families with richer poisonous vascular plant species in the region were Euphorbiaceae,Ranunculaceae,Solanaceae,Asteraceae and Fabaceae.