Notice

Colin Mills, compiler of the Hortus Camdenensis, died in late November 2012 after a short illness. As he always considered the Hortus his legacy, it is his family's intention to keep the site running in perpetuity. It will not, however, be updated in the near future.

Trees and Shrubs

A division of the Camden Park catalogues that is not clearly defined. In broad terms it includes all plants with woody stems except conifers and fruit trees and shrubs.

Quercus ilex L.

Frost-hardy, rounded evergreen tree with smooth, dark bark, lance-shaped, entire or toothed leaves, to 8cm long, and nearly round acorns.  To 25m.  [RHSE, Hortus, Hilliers’].

Quercus incana Roxb. non Bartr.

Frost-hardy, small evergreen tree or large shrub with narrow, pointed, toothed oval leaves, white-felted below.  [RHSD, Hilliers’].

Quercus macrolepis Kotschy

Frost-hardy, spreading, deciduous or semi-evergreen tree with fissured bark, oblong, angularly-lobed leaves, to 10cm long, and single or small clusters of acorns, to 4.5cm long, with large cups.  To 15m.  [RHSE, Hortus, Hilliers’].

Quercus marilandica Münchh.

Fully-hardy, spreading deciduous tree with very rough, dark bark, glossy, obovate, lobed leaves, to 17cm long, and sometimes as much across, colouring in the autumn, and ovoid acorns.  To 12m.  [RHSE, Hortus, Hilliers'].

Quercus palustris Münchh.

Fully-hardy, fast-growing, broadly conical, deciduous tree, with pendant lower branches, smooth grey bark, elliptic, deeply-lobed, glossy leaves, to 15cm long, turning scarlet-brown in autumn, and nearly spherical acorns.  To 20m.  [RHSE, Hortus, Hilliers'].

Quercus polymorpha Schltdl. and Cham.

Semi-evergreen tree with grey to brown bark, rounded leaves, serrate towards the tips, acorns usually 1 or 2, pedunculated.  To 20m.

Quercus robur L.

Fully-hardy, spreading deciduous tree with fissured bark, oblong leaves with rounded lobes, to 14cm long, and single or small clusters of acorns.  To 35m.  [RHSE, Hortus, Hilliers’].

Quercus robur L. subsp. microcarpa

See Quercus robur L. for a description of the species.  Microcarpa is presumably a form of Quercus robur with small fruits, although I have found no specific description.

Quercus robur L. var. fastigiata

See Quercus robur L. for a description of the species.  Quercus robur ‘Fastigiata’ is a large, imposing tree of columnar habit with upright branches and tapering leaves.  [RHSD, Hortus, Hilliers’].

Quercus robur L. var. sessiliflora

Very similar to Quercus robur L. which see.  It differs mainly in having distinctly stalked leaves and stalkless acorns.  To 35m.  [RHSD, Hortus, Hilliers’].

Quercus suber L.

Frost-hardy, rounded evergreen tree with thick, corky bark, oblong, toothed leaves, to 7cm long, and ovoid acorns.  To 20m.  [RHSE, Hortus Hilliers’].  The bark is the source of cork. 

Quercus velutina Lam.

Fully-hardy, fast-growing, spreading, deciduous tree with ridged, almost black bark, elliptic, deeply-lobed leaves, to 25cm long, turning red-brown in autumn, and spherical acorns.  To 30m.  [RHSE, Hortus, Hilliers’].

Quercus virginiana Mill.

Fully-hardy, small, wide-spreading, evergreen tree with oblong, usually entire leaves, glossy above whitish, hairy beneath.  [RHSD, Hortus, Hilliers’].

Quisqualis indica L.

Frost tender, perennial climber, shrub-like when young, with sharply pointed, elliptic leaves, to 18cm long, and pendant terminal racemes of fragrant, slender-tubed flowers, to 7cm long, white on opening, then changing to pink, then purplish red with age, in summer and autumn.  To 20m or more.  [RHSE, Hortus].

Quisqualis pubescens Burm.f.

Quisqualis pubescens is now considered to be a form of Quisqualis indica L. which see.  They are kept separate here for convenience.  Johnson’s Dictionary describes it as a separate species from Guinea, with orange-red flowers.  Don describes the flowers of Q. pubescens as like those of Q. indica

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