Swallow Whole: A tendriculos can swallow whole any creature smaller than itself if it hits with a natural 20 on its bite attack. Once inside the plant’s mass, the opponent must save vs. Paralysis each round or be paralyzed for 3d6 rounds by the tendriculos’s digestive juices, suffering 2d6 points of acid damage each round. A swallowed creature can cut its way out by using a light slashing or piercing weapon to inflict damage of at least half the monster’s hit points to its interior (AC 14). If a victim escapes this way, the hole they made closes instantly; any other swallowed opponents must cut their own way out.

Regeneration: If a tendriculos loses part of its body mass it can be regrown in 1d6 minutes. Holding the severed portion against the wound enables it to reattach in just one round.