Crotalaria and Herbaceous plant

Crotalaria noun - Any of various plants of the genus Crotalaria having inflated pods within which the seeds rattle; used for pasture and green-manure crops.

Herbaceous plant and crotalaria are semantically related. In some cases you can use "Herbaceous plant" instead a noun "Crotalaria".

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

Crotalaria and herbaceous plant are semantically related. Sometimes you can replace term "Crotalaria" with "Herbaceous plant", this terms are similar.