A natural hybrid between Wych Elm and Field Elm, known in its main form as Dutch Elm and in clonal forms as 'Hollandica' or 'Major'. Several named cultivars exist, including the once-popular street tree Huntingdon Elm ('Vegeta'), which has more resistance to Dutch elm disease (DED) than many other elms.

Uncommon, surviving in hedgerows as suckers or as young trees.

Monoecious, and a fully fertile hybrid. Wind-pollinated. Wind-dispersed.

This hybrid inherits its parents' form and foliage, though forms differ. Dutch Elm: tall (40m), lightly branched with a high dome, strongly suckering and often low-forking; brown small-plated bark, robust corky-winged branches; large (15cm) buckled glossy leaves with 10-14 veins, deeply notched seed-wings. Huntingdon Elm: tall (40m), domed with straight ascending branches, grey ridged bark, dark leaves with 14-18 vein pairs, a strongly asymmetric base and small-notched seed-wing.