Oxlip and Primula

Oxlip noun - Eurasian primrose with yellow flowers clustered in a one-sided umbel.

Primula and oxlip are semantically related. In some cases you can use "Primula" instead a noun "Oxlip".

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

Oxlip and primula are semantically related. Sometimes you can replace term "Oxlip" with "Primula", this nouns are similar.