B3I1T1T1E1R1B3R1U1S1H4E1S1
20 points
BITTERBRUSHES is validvalid
BITTERBRUSH, a plant of species Purshia tridentata* [n]
BITTERBRUSH, a silvery shrub of NW America [n]
BITTERBRUSH, a plant of species Purshia tridentata* [n]
BITTERBRUSH, a silvery shrub of NW America [n]