Purple-flowering raspberry and Raspberry bush

Purple-flowering raspberry noun - Shrubby raspberry of eastern North America having showy rose to purplish flowers and red or orange thimble-shaped fruit.

Raspberry bush and purple-flowering raspberry are semantically related. In some cases you can use "Raspberry bush" instead a noun phrase "Purple-flowering raspberry".

Raspberry bush noun - Woody brambles bearing usually red but sometimes black or yellow fruits that separate from the receptacle when ripe and are rounder and smaller than blackberries.

Purple-flowering raspberry and raspberry bush are semantically related. Sometimes you can replace phrase "Purple-flowering raspberry" with "Raspberry bush", this phrases are similar.