The Wild Olive is a small tree or shrub that grows up to 8–15 m tall with thorny branches. The leaves are opposite, 4–10 cm long and 1–3 cm wide. The leaves have a dark greyish-green color above and are pale with whitish scales below. The small white flowers, with calyx and corolla divided into four parts, two stamens and bifid stigma, are mostly on the last year's wood, in racemes coming up from the axils of the leaves. The fruit is a small drupe 1–2 cm long, thinner-fleshed and smaller in wild plants than in orchard cultivars.