devil nettle

NOUN
12 LETTERS · STARTS WITH D

devil nettle is a valid 12-letter word worth 15 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2E1V4I1L1N1E1T1T1L1E1
2 + 1 + 4 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 =15 PTS
DOUBLE WORD → 30TRIPLE WORD → 45
MEANING

What does devil nettle mean?