Polypodium Vulgare (Polypod) is a small evergreen fern found in the woods near rocks or boulders. Polypod is thought to have anabolic and androgen-like effects on the body. It is commonly found in horny goat weed as polypod is thought to enhance sexual activity. Polypod may also increase muscle, strength, and stamina. Polypod contains a group of substances called ecdysteroids???a major component of which is 20-hydroxyecdysone.