Ligneous plant and Vascular plant

Ligneous plant noun - A plant having hard lignified tissues or woody parts especially stems.

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

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

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