Andropogon scoparius and Broom grass

Andropogon scoparius noun - Handsome hardy North American grass with foliage turning pale bronze in autumn.

Broom grass and Andropogon scoparius are semantically related. In some cases you can use "Broom grass" instead a noun phrase "Andropogon scoparius".

Broom grass noun - Any of several grasses of the genus Andropogon; used in broom making.

Andropogon scoparius and broom grass are semantically related. Sometimes you can replace phrase "Andropogon scoparius" with "Broom grass", this phrases are similar.