Appearance
''Quercus calliprinos'' is a small to medium-sized tree or large shrub reaching 5–18 m tall and 1 m trunk diameter. It is evergreen, with spiny-serrated leaves 3–5 cm long and 1.5–3 cm broad. The acorns are 3–4 cm long and 2–3 cm diameter when mature about 18 months after pollination, held in a cup covered in dense, elongated, reflexed scales.''Quercus calliprinos'' is closely related to the Kermes oak of the western Mediterranean, and is treated as a subspecies or variety of it by some botanists. The Kermes oak is distinguished from it by its smaller size and smaller acorns less than 2 cm diameter.

Habitat
It grows in the Mediterranean climate zone, mainly on limestone, in mid-elevations, often dominating the flora, alongside ''Pistacia palaestina''.References:
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