Noun has 2 senses

• red osier(n = noun.plant) american dogwood, cornus stolonifera, red dogwood, red osier dogwood, redbrush - common North American shrub with reddish purple twigs and white flowers;


• red osier(n = noun.plant) basket willow, purple osier, purple willow, red willow, salix purpurea - Eurasian osier having reddish or purple twigs and bark rich in tannin;