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Prydværdi stamme Prydværdi blomst Prydværdi frugt Prydværdi efterårsfarve

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Betulaceae
Ostrya

Ostrya virginiana

American hop hornbeam, Eastern hopbeam, Ironwood

Virginische Hopfenbuche - Charme noir de Virginie, Bois d'or, Ostryer de Virginie - Amerikaanse hopbeuk

Ostrya virginiana Ostrya virginiana
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Rundt/kugleformet 1. størrelse højere end 12 meter Mørk, tæt krone
Højde: 8 - 20 m
Krone: round
Bark og grene: bark grey-brown, grooved, young twigs bear hairs
Blad: elongated ovoid to oval, green, 6 - 12 cm
Blomster: yellowish-green catkins, Y 4-5 cm long, X 2 - 2.5 cm long, April
Frugter: nutlets, in fruit resembling hops
Anvendelse: park tree
Jordtype: likes calcareous soil
Vindbestandighed: good
Oprindelse: central and eastern part of the United States
Vinterhårdhedszone: 4
Synonym: -

Native to a great deal of the United States where it is valued as a producer of hard wood ('ironwood'). A remarkable feature is the very low branching: the trunk often grows no higher than half a metre. The pendulous side branches cause a colossal crown to be formed with the passage of time. The short trunk is grey-brown, grooved and flakes off in small plates. The trunk becomes steadily darker in older trees. Young twigs are hairy but they are bare at a later stage. The long ovoid to oval leaves have a double serrated edge and turn a remarkable colour of yellow in autumn. The base of the leaf is more heart-shaped than that of O. carpinifolia. The tree's flowers are in the form of yellowish-green male catkins 4 - 5 cm long and female flowers in small ears. The latter turn into fruit resembling a hop and are approx. 6 cm long.

Parktræ Prydværdi frugt Prydværdi efterårsfarve Tåler hærdning Til kalkrig jord Til sandjord Tåler tør jord
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