1. Stamens ca. 3 mm, papillate -hairy on lower part of filament.

2. Leaves and herbaceous branchlets of current year densely papillate -hairy.

3. Ovary ovoid or globose ; stigmas 2 or 3(-5), usually recurved, papillate throughout.

4. Leaves thick textured, usually 1.5-2.2 cm long and 3mm thick, midvein has the same color of stomatal band, densely and evenly papillate, margin flat in living state.

5. Follicle dehiscent; mature carpels tappering to the base , apex papillate.

6. It caused pulmovascular internal elastic membrane fragmentation, necrotic small angiitis , and large artery endothelial cell diffuse or papillate proliferation.

7. The AKP presented in epidermic layer of tentacles and papillate podia , the peritoneal layer and nether peritoneal layer of respiratory tree, and the peritoneal layer of digestive system.