An open-pollinated seedling selected for ornament; leaves purple when young and more lobulate than in Corylus americana (de Jong 2011).
‘Purple Haze’ arose as a seedling found by Howard Kulke at the McKay Nursery in Wisconsin and has purple young leaves, fading to bronzy-green, and purplish catkins (de Jong 2011; Plants to Grow 2023). It is often treated as a sport of Corylus americana, but its leaves are more distinctly lobulate than is usual in that species, and the habit is perhaps more vigorous. Some sources suggest that it never bears fruit (Stonegate Gardens 2023). A rather similar plant, ‘Purpleleaf Bailey Select’, fruits freely and is universally treated as a C. americana clone (q.v.).