Holm Oak Totally Explained

Everything about The Holm Oak totally explained

The Holm Oak (Quercus ilex), also called Holly Oak or Evergreen Oak, is a large evergreen oak native to the Mediterranean region. It takes its name from, an obsolete name for holly.(External Link

) In Spanish it's called encina, in Portuguese azinheira and in French chêne vert or yeuse. It is a member of the white oak section of the genus, with acorns that mature in a single summer. It is a medium-size tree 20–27 m tall with finely square-fissured blackish bark and leathery evergreen leaves. The old leaves fall 1–2 years after new leaves emerge. The leaves are dark green above and pale whitish-grey with dense short hairs below. The leaf shape is variable, the adult leaves are entire, 4–8 cm long and 1–3 cm broad, while those on the lower branches of young trees are often larger (to 10 cm long), and are toothed or somewhat spiny. This is presumed to be for protection from grazing animals. In this, the foliage resembles that of the common European Holly Ilex aquifolium, and this resemblance has led to its common and botanic names. The name ilex is originally the classical Latin name for the Holm Oak, but was later also used as a botanical genus name for the hollies. The flowers are catkins, produced in the spring; the fruit is an acorn, which matures in about 6 months.
There are two subspecies:

Quercus ilex subsp. ilex. Native in the north and east of the species' range, from northern Iberia and France east to Greece. Leaves narrow; acorns 2 cm long, bitter tasting.
Quercus ilex subsp. rotundifolia (syn. Q. rotundifolia, Q. ballota). Native in the southwest of the species' range, in central and southern Iberia (Spain) and northwest Africa. Leaves broader; acorns 2.5 cm long, sweet tasting.

Cultivation and uses

The wood is hard and tough, used since ancient times for general construction purposes as pillars, tools, wagons, vessels, and wine casks. Used as well as firewood, or in charcoal manufacture.
   The Holm Oak is one of the top three trees used in the establishment of truffle orchards, or truffieres. Truffles grow in an ectomycorrhizal association with the tree's roots.
   The acorns, like those of the Cork Oak, are edible (toasted or as a flour), and are an important food for free-range pigs reared for serrano ham production. Boiled in water, the acorns can also be used as a medicinal treatment for injury dis-infections.
   It can be clipped to form a tall hedge, and it's suitable for coastal windbreaks, in any well drained soil. It forms a picturesque rounded head, with pendulous low-hanging branches. Its size and solid evergreen character gives it an imposing architectural presence that makes it valuable in many urban and garden settings. While Holm Oak can be grown in much of maritime northwestern Europe, it isn't tolerant of cold continental winters.

Gallery

Image:quercus_ilex_rotundifolia.jpg|Quercus ilex subsp. rotundifolia (Extremadura, Spain) Image:quercus_ilex_rotundifolia_leaf.jpg|Juvenile (spiny) leaf of Quercus ilex subsp. rotundifolia (Extremadura, Spain) Image:quercus_ilex_rotundifolia_bark.jpg|Bark of Quercus ilex subsp. rotundifolia (Extremadura, Spain) Image:quercus_rotundifolia.jpg|Quercus ilex subsp. rotundifolia (Ávila, Spain) Further Information

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