Ulmus x hollandica Mill. APNI* Description: Large, spreading tree to 30 (–40) m high, deciduous; suckers and epicormic shoots present, often numerous, often forming thickets. Bark rough to furrowed/fissured, grey-brown. Branches sometimes with corky flanges; branchlets sparsely softly-hairy to glabrous.
Leaves alternate, with lamina ovate to broadly ovate, ± elliptic-ovate, elliptic or ± obovate, (3.5–) 6–13 (–15) cm long, (2–) 3.5–7 (–10) cm wide (leaves varying in size on same branchlet), oblique at base (trees can have leaves with a distinct basal lobe), double-serrate margin, acuminate at apex, ± shiny green, smooth to scabrous and glabrescent above, paler, ± glabrous except for tufts in vein axils and some hairs along veins below, 10–19 secondary veins each side of midvein; petiole 0.5–1.5 (–2) cm long, glabrous to sparsely hairy; foliage turns yellow or sometimes orange tones in autumn; stipules linear or lanceolate, 0.5–1 cm long.
Samara ovoid (to orbicular or ± broadly elliptic/oblong-elliptic), flat, c. 10–20 mm long, 7–19 mm wide, notched at apex, broadly winged.
Flowering: Winter to Spring
Distribution and occurrence: Native of Europe to Iran. Mainly temperate. Australia: Naturalised S.A., N.S.W., Vic. Tas. Recorded from roadsides, weedy paddocks, lawns, disturbed creek-sides, degraded river flat with exotic vegetation, forest tracks, bushland near habitation, other disturbed areas near planted trees.
NSW subdivisions: *CT
*
Thought to be a hybrid between Ulmus glabra Huds. and Ulmus minor Mill.
Text by P.G. Kodela, H.J. Hewson, added by Kerry Gibbons 8 May 2023.
Taxon concept: Flora of Australia Online [accessed 8 May 2023]. Distribution and occurrence: Kew Plants of the World Online; Australian Plant Census [both accessed 8 May 2023].
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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