red osier

(noun) common North American shrub with reddish purple twigs and white flowers. Synonyms: red osier, red osier dogwood, red dogwood, American dogwood, redbrush, Cornus stolonifera.

(noun) Eurasian osier having reddish or purple twigs and bark rich in tannin. Synonyms: purple willow, red willow, red osier, basket willow, purple osier, Salix purpurea.