Burdock and Cocklebur

Burdock noun - Any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs.

Cocklebur and burdock are semantically related. In some cases you can replace term "Cocklebur" with "Burdock", this nouns are similar.

Cocklebur noun - Burdock having heart-shaped leaves found in open woodland, hedgerows and rough grassland of Europe (except extreme N) and Asia Minor; sometimes cultivated for medicinal and culinary use.

Burdock and cocklebur are semantically related. Sometimes you can use "Burdock" instead a noun "Cocklebur".