Buckthorn
From MUME
Buckthorns are aggressive, evil level 7 plants found in Fangorn.
A mass of low-spreading shrub quivers on the ground. >examine shrub Upon closer inspection one can notice the fine-toothed leaves of the shrub. Its stems growing already yellow with age, the hairless twigs generate thorned ends, sharp enough to tangle into bare skin or clothes. The elliptic leaves also appear sticky upon touching.