green adder's mouth

NOUN
19 LETTERS · STARTS WITH G

green adder's mouth is a valid 19-letter word worth 24 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
G2R1E1E1N1A1D2D2E1R1'0S1M3O1U1T1H4
2 + 1 + 1 + 1 + 1 + 0 + 1 + 2 + 2 + 1 + 1 + 0 + 1 + 0 + 3 + 1 + 1 + 1 + 4 =24 PTS
DOUBLE WORD → 48TRIPLE WORD → 72
MEANING

What does green adder's mouth mean?

NOUN · 1 SENSE
1

North American orchid having a solitary leaf and flowers with threadlike petals.