dryopteris phegopteris

NOUN
22 LETTERS · STARTS WITH D

dryopteris phegopteris is a valid 22-letter word worth 35 points in Scrabble and 37 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2R1Y4O1P3T1E1R1I1S1P3H4E1G2O1P3T1E1R1I1S1
2 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 4 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 + 1 =35 PTS
DOUBLE WORD → 70TRIPLE WORD → 105
MEANING

What does dryopteris phegopteris mean?