yellow adder's tongue

NOUN
21 LETTERS · STARTS WITH Y

yellow adder's tongue is a valid 21-letter word worth 27 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
Y4E1L1L1O1W4A1D2D2E1R1'0S1T1O1N1G2U1E1
4 + 1 + 1 + 1 + 1 + 4 + 0 + 1 + 2 + 2 + 1 + 1 + 0 + 1 + 0 + 1 + 1 + 1 + 2 + 1 + 1 =27 PTS
DOUBLE WORD → 54TRIPLE WORD → 81
MEANING

What does yellow adder's tongue mean?

NOUN · 1 SENSE
1

Eastern North American dogtooth having solitary yellow flowers marked with brown or purple and spotted interiors.