Nonflowering plant and Vascular plant

Nonflowering plant noun - Plants having vascular tissue and reproducing by spores.

Vascular plant and nonflowering plant are semantically related. In some cases you can use "Vascular plant" instead a noun phrase "Nonflowering plant".

Vascular plant noun - Green plant having a vascular system: ferns, gymnosperms, angiosperms.

Nonflowering plant and vascular plant are semantically related. Sometimes you can replace phrase "Nonflowering plant" with "Vascular plant", this phrases are similar.