Ulmus procera 'Louis Van Houtte'

Extremely rare, wide-crowned, medium-size, slow-growing. In Victoria the only known specimen, which is at the Royal Botanic Gardens Victoria (Melbourne Gardens), is assumed to be at least 50 years old, it has yellow leaves produced mainly in the upper canopy and at the tips of the branchlets; they are large, elongated, and often with more than 14 veins, and the basal lobe sometimes covers the petiole-characters that show some affinity with U. ×”hollandica. However, the mostly rough upper surface and dense soft hairiness of the lower surface, shoots and leaf stalks are more typical of U. procera under which it is placed by most authorities.

It is often confused in the nursery trade with U. glabra 'Lutescens' but the latter has a more widespread canopy, branching lower down and larger, more obovate, thinner leaves that are evenly lime-green throughout the canopy.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Rosales
family       Ulmaceae
genus        Ulmus L.
species         Ulmus procera Salisb.