Bramble bush and Raspberry

Bramble bush noun - Any prickly shrub of the genus Rubus bearing edible aggregate fruits.

Raspberry and bramble bush are semantically related. In some cases you can replace term "Raspberry" with "Bramble bush", this terms are similar.

Raspberry 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.

Bramble bush and raspberry are semantically related. Sometimes you can use "Bramble bush" instead a noun "Raspberry".