Which species forms the root of the classic, bright, all-yellow trumpet visual representation of a daffodil?

Answer

Narcissus pseudonarcissus

The iconic look of the classic yellow trumpet daffodil is rooted in the species Narcissus pseudonarcissus, also known as the wild daffodil or the Lenten lily.

Which species forms the root of the classic, bright, all-yellow trumpet visual representation of a daffodil?
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