Nebraska fern and Winter fern

Nebraska fern noun - Large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous.

Winter fern and Nebraska fern are semantically related. In some cases you can use "Winter fern" instead a noun phrase "Nebraska fern".

Winter fern noun - Large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous.

Nebraska fern and winter fern are semantically related. You can use "Nebraska fern" instead a noun phrase "Winter fern".