Blackcap raspberry and Raspberry bush

Blackcap raspberry noun - Raspberry native to eastern North America having black thimble-shaped fruit.

Raspberry bush and blackcap raspberry are semantically related. In some cases you can use "Raspberry bush" instead a noun phrase "Blackcap 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.

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