Golden Oak

The golden oak is a much branched evergreen shrub or small tree up to 10 m (33 ft) high. Due to its short stature (in relation to other oaks) it is sometimes referred to as the dwarf oak. Its leaves are simple, obovate to suborbicular, 1.5–8 cm (0.59–3.15 in) long, 1–7 cm (0.39–2.76 in) wide, glabrous and shining dark green above and densely golden or brownish tomentose below, with serrate margins and raised nervation. The petioles are strong, 6–11 mm (0.24–0.43 in) long and pilose. The flowers are unisexual; the male catkins are greenish-yellow forming spreading or pendulous clusters at the tips of the branches; the female flowers are axillary, solitary or in groups of two to three. The acorns are narrowly obovate or subcylindrical, usually tapering towards the base, 2–2.5 cm (0.79–0.98 in) long and 0.8–1.2 cm (0.31–0.47 in) wide, with a woody endocarp and cupule with strongly recurved scales.

Quercus alnifolia is restricted to Troodos Massif, where it grows on igneous geological substrate at elevations of 400 to 1,800 m (1,300 to 5,900 ft). It occupies dry habitats in association with Pinus brutia or forms dense maquis in mesic habitats, characterized by deep forest soils.

Golden oak offers soil stabilisation against erosion due to its ability to colonize stony and rocky slopes. In its distribution area, Q. alnifolia is the most important broadleaved species forming pure or mixed stands, within the conifer (Pinus brutia, Pinus nigra) dominated forests of Cyprus. Thick stands of Q. alnifolia in mesic habitats, considerably modify the humidity conditions of the site and form forest soils with "mull" humus favouring the existence of sciophilous herbal species. Like other members of the oak genus, Q. alnifolia forms mutually beneficial, ectomycorrhizal associations with various fungi. A preliminary study in 2011, reported over 80 mycorrhizal fungi to be associated with the golden oak; the total number, however, is estimated to be much higher.