The maximum wind over the mountain is more than 30 pounds.

The back of Kuoshanfeng is dark brown, with a ∧-shaped yellow-white marking on the nape of the neck, without spectacled spots; the back of the trunk and tail has narrow white stripes with black borders.

The lower jaw of the cross-mountain wind is khaki, the body and ventral surface are gray-brown, with black Linear markings. The markings of juvenile snakes are different from those of adults, mainly yellow and white stripes on the back of the snout and in front of the eyes, and black body with more than 35 light yellow or white stripes.