Gorse and Undergrowth

Gorse noun - Very spiny and dense evergreen shrub with fragrant golden-yellow flowers; common throughout western Europe.

Undergrowth and gorse are semantically related. in scrappy bushes topic. In some cases you can use "Undergrowth" instead a noun "Gorse".

Undergrowth noun - The brush (small trees and bushes and ferns etc.) growing beneath taller trees in a wood or forest.

Gorse and undergrowth are semantically related. Sometimes you can use "Gorse" instead a noun "Undergrowth".