Herbaceous plant and Lady's thistle

Herbaceous plant noun - A plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests.

Lady's thistle and herbaceous plant are semantically related. In some cases you can replace phrase "Lady's thistle" with "Herbaceous plant", this phrases are similar.

Lady's thistle noun - Tall Old World biennial thistle with large clasping white-blotched leaves and purple flower heads; naturalized in California and South America.

Herbaceous plant and lady's thistle are semantically related. You can use "Herbaceous plant" instead a noun phrase "Lady's thistle".