The stem of Paris polyphylla in Yunnan is erect, with a diameter of about 1 cm. The stem is very smooth without the distribution of fine hairs, and the color is cyan purple or purplish red.
Huachonglou perennial herbs, 30 to 100 cm high, stem above seems to have a layer of white powder.
There are about 4 to 9 leaves in rotation on the top of the stem, the shape of the leaves is long oval, the length is about 9 to 23 cm, the width is 2.5 to 7 cm
Huachonglou has about 5 to 8 leaves in rotation on the top. The shape of the leaves is oblong. Compared with the former, the leaves are smaller, about 7 to 17 cm in length and 2.5 to 5 cm in width.
The style of Chonglou in Yunnan is relatively short, and the florescence begins earlier, from April
Huachonglou's perianth is in thin line shape, with yellow or yellow green color. The flowering period starts from May
