Ulmus x hollandica Mill.

Dutch elm (en), Orme de Hollande (fr)

Species

Angiosperms > Rosales > Ulmaceae > Ulmus

Characteristics

Tree up to 40 m high, suckering prolifically and with epicormic shoots. Bark grey, strongly fissured. Twigs hairy at first, becoming smooth and grey or brown in second year. Adult lvs broadly ovate to ovate-lanceolate, acute or acuminate, serrate, scabrid and often glandular above and below, also often villous near midvein below, 5-12 cm long; lateral veins in 9-14-(18) pairs; basal auricle usually not overlapping petiole. Lvs of basal shoots mostly somewhat shorter. Petioles much < blade. Stipules when remaining, oblong, entire, c. 7-12 mm long. Fr. broadly obovate, light brown, 2-3 cm long.
More
Large, spreading tree to 40 m high; suckers numerous, forming thickets. Leaves with lamina ovate to broadly ovate or ± elliptic-ovate, 6–14 cm long, oblique at base, double-serrate margin, acuminate at apex, scabrous above, glabrescent; petiole 0.5–1.5 (–2) cm long; stipules linear or lanceolate, 0.5–1 cm long. Flowers not seen. Samara flat, orbicular, 1–2 cm wide, broadly winged.
Life form perennial
Growth form tree
Growth support -
Foliage retention deciduous
Sexuality
Pollination anemogamy
Spread anemochory
Mature width (meter) -
Mature height (meter) 40.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Soil acidity -
Soil nutriment -
Hardiness (USDA) 7-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Germination treatment -
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Vigor -
Productivity -

Images

Leaf

Ulmus x hollandica leaf picture by plant2000 plant (cc-by-sa)
Ulmus x hollandica leaf picture by plant2000 plant (cc-by-sa)
Ulmus x hollandica leaf picture by Dieter Albrecht (cc-by-sa)

Distribution

Ulmus x hollandica world distribution map, present in Australia, France, United Kingdom of Great Britain and Northern Ireland, and New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:856868-1
WFO ID wfo-0000416745
COL ID 7DFK9
BDTFX ID 70290
INPN ID 128205
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Ulmus webbiana Ulmus smithii Ulmus dauvessei Ulmus major Ulmus x modiolina Ulmus x hollandica Ulmus superba Ulmus batavina Ulmus elegantissima Ulmus vegeta Ulmus cordifrons Ulmus x serpentina Ulmus x pendula Ulmus x hillieri Ulmus dippeliana Ulmus x wentworthii-pendula Ulmus minor var. sarniensis Ulmus hollandica var. insularum Ulmus montana var. rugosa Ulmus x var. pendula Ulmus campestris f. wendworthii Ulmus glabra f. concavifolia