Citrullus

False Appearance. While the citrullus remains motionless, it is indistinguishable from a normal melon plant.

Gush. When the citrullus takes bludgeoning damage, sticky juice splashes out of it. If the attacker is within 30 feet of the citrullus, the attacker must succeed on a DC 13 Dexterity saving throw or be restrained by the sticky juice as if it had failed a saving throw against the plant's Bile Spray action.

Bite. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 18 (4d6 + 4) piercing damage plus 7 (2d6) acid damage.

Bile Spray (Recharge 5-6). The citrullus exhales pink bile in a 30-foot cone. Each creature in that area must make a DC 13 Dexterity saving throw. On a failure, the creature takes 14 (4d6) acid damage and is restrained by the sticky seed-filled juice for 1 minute. On a success, the creature takes half the damage and isn't restrained. A creature, including the restrained creature, can take its action to free the restrained creature by succeeding on a DC 13 Strength check.

Creeping Seedlings. The seeds in the sticky juice grow viny tendrils and drag each creature restrained by Bile Spray and Gush up to 25 feet straight toward the citrullus.