The Venomous Tentacula is a green, spiky, toothsome plant with mobile vines that try to grab living prey. Venomous Tentacula expels venom from its shoots, and its spikes are deadly. Its bite is highly poisonous and can prove fatal.

This dangerous plant is used for student research in Herbology classes at Hogwarts School of Witchcraft and Wizardry. Students are permitted to swear loudly if a Tentacula tries to strangle them during lessons. Diffindo can be used to both stun the creature and sever its arms. Venomous Tentacula seeds are a Class C non-tradeable substance Tentacula seeds emit a faint rattling noise even if they are completely stationary