Herbaceous plant and Primula

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

Primula and herbaceous plant are semantically related. In some cases you can replace term "Primula" with "Herbaceous plant", this terms are similar.

Primula noun - Any of numerous short-stemmed plants of the genus Primula having tufted basal leaves and showy flowers clustered in umbels or heads.

Herbaceous plant and primula are semantically related. You can use "Herbaceous plant" instead a noun "Primula".