Corona very shallow. Resembles an earlier-flowered N. poeticus var. recurvus with the perianth segments broader, smoother and less strongly reflexed.

From the 2000 Oregon Trail Daffodils catalog:  

1985 L. 40cm. Recurvus x Dallas. N-25 /4. A modified recurvus with wider perianth segments and less backsweep. Perianth is snow white in contrast to the small eye which is green to midway, blending to yellow with a narrow red rim. Good flat cupped poet, earlier than recurvus.