rubus ursinus

NOUN
13 LETTERS · STARTS WITH R

rubus ursinus is a valid 13-letter word worth 14 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
R1U1B3U1S1U1R1S1I1N1U1S1
1 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =14 PTS
DOUBLE WORD → 28TRIPLE WORD → 42
MEANING

What does rubus ursinus mean?