A parasitic plant. It attacks and feeds off the magic of other plants. It moves kind of like devil's snare. Voldemort uses it as symbol of hatred due it's ability to suck of magic. His propaganda believes make people think muggleborns stole magic from purebloods and the plant symbolizes it.
[ v ]Human magic
|Wand based||Alchemy · Charms · Duelling · Transfiguration · Wand lore|
|Wandless||Enchantments · Herbology · Necromancy · Potions · Rituals|
|Mixed||Divination · Healing · Magical theory · Mind magic|