bit·ter·root 
(bĭtər-rt′, -rt′)
(bĭtər-rt′, -rt′)n.
A perennial herb (Lewisia rediviva) native to western North America, having showy pink or whitish flowers and a bitter but edible fleshy root.
bitterrootLewisia rediviva
- broadleaf arrowhead
- broad-leafed
- broad-leaved
- broadloom
- broadly
- broad-minded
- broad-mindedly
- broad-mindedness
- broadness
- Broad River
- Broads
- broadsheet
- broadside
- broad-spectrum
- broadsword
- broadtail
- Broadway
- broad-winged hawk
- Brobdingnagian
- brocade
- Broca's area
- brocatelle
- broccoli
- Broccolini
- broccoli raab