Cyclosorus parasiticus (L.) Farw. is a plant of the family Pteridaceae and genus Pteridium. The plant reaches a height of 70 centimeters. The rhizome runs horizontally and is about 4 millimeters thick, with deep brown lanceolate scales at the base of the petiole. Ye Jinsheng The petiole is 40 centimeters long and about 2 millimeters thick, with a deep straw color The leaf blade is 35 centimeters long, round and lanceolate in shape, with a pinnate cleft at the tip and a gradually pointed tail 12-16 pairs of feathers, sessile, slightly arched or slanted upwards at the top 20-25 pairs of lobes, obliquely spreading, close to each other, with a particularly long one on the upper side of the base, about 6-7 millimeters long, and the rest 4-5 millimeters long, oblong. The leaf veins can be seen on both sides, with oblique and single lateral veins. Each lobe has 6-8 pairs (9 pairs of lateral lobes on the base, occasionally bifurcated), and one pair at the base comes from above the base of the main vein.