Mysterious plants which grow long scythed tendrils perhaps in defence against would be predators of the worst kind, herbivores.
Those monstrous beasts, not just do they chew upon and devour plantkind with merciless ambition, they do so whilst their prey still lives on, unable to scream. It is time for the mutiny of plantkind, for they can bear no more.
Any who dare come near shall be sliced apart without hesitation. And in the rare case the attacker manages to pry their weak bodies from the ground, a single shriek at close range will render any blood-bodied being paralysed.
Shades of Battler 