Venomous Tentacula

The Venemous Tentacula is a dark-red, spiky, teething plant that has vines that reach out to people. Their spikes are poisonus, and Venomous Tentacula seeds are Class C non-tradeable items. Fred and George Weasley bought Tentacula seeds off Mundungus for their Weasley Wizard Wheezes products.