Clematis and Old man's beard

Clematis noun - Any of various ornamental climbing plants of the genus Clematis usually having showy flowers.

Old man's beard and clematis are semantically related. In some cases you can replace phrase "Old man's beard" with "Clematis", this terms are similar.

Old man's beard noun - Common climber of eastern North America that sprawls over other plants and bears numerous panicles of small creamy white flowers.

Clematis and old man's beard are semantically related. You can use "Clematis" instead a noun phrase "Old man's beard".