soapberry vine

NOUN
14 LETTERS · STARTS WITH S

soapberry vine is a valid 14-letter word worth 23 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1O1A1P3B3E1R1R1Y4V4I1N1E1
1 + 1 + 1 + 3 + 3 + 1 + 1 + 1 + 4 + 0 + 4 + 1 + 1 + 1 =23 PTS
DOUBLE WORD → 46TRIPLE WORD → 69
MEANING

What does soapberry vine mean?