Trees by Genus

Genus 'Quercus'

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Quercus agrifolia
Quercus alba
Quercus bicolor
Quercus canariensis
Quercus castaneifolia
Quercus cerris
Quercus chrysolepis
Quercus coccinea
Quercus dentata
Quercus frainetto
Quercus glauca
Quercus x hispanica
Quercus ilex
Quercus imbricaria
Quercus kelloggii
Quercus laurifolia
Quercus x leana
Quercus libani
Quercus x ludoviciana
Quercus macranthera
Quercus macrocarpa
Quercus marilandica
Quercus myrsinifolia
Quercus nigra
Quercus palustris
Quercus petraea
Quercus phellos
Quercus pontica
Quercus prinus
Quercus pubescens
Quercus pyrenaica
Quercus pyrenaica 'Pendula'
Quercus robur
Quercus robur cv. 'Filicifolia'
Quercus robur forma purpurascens
Quercus rubra
Quercus schumardii
Quercus suber
Quercus trojana
Quercus x turneri
Quercus velutina

Quercus velutina (Black Oak)

Quercus velutina

Also known as: Quercitron Oak

Native: Eastern North America.

The bark is used as a source of quercitron, a yellow dye, and also for tannin. Height to 23m, but may occasionally be much taller.

Foliage

Leaves are very variable, similar to the Quercus coccinea, though less deeply cut away. They are usually about 12.5cm long but may reach as much as 30cm in length. The upper surface is dark shy green, the lower surface is scattered with a thin scurf and has tufts of down in the vein axils.

Flowers

Quercus velutina

Flowers are found with the young leaves in late May or early June, the females in the leaf axils.

Fruits

Quercus velutina

Acorns fall in October and are up to about 1.8cm in length.