Olive

is an evergreen tree or shrub It is short and squat, and rarely exceeds 8–15 metres in height. The silvery green leaves are oblong, measuring 4–10 centimetres long and 1–3 centimetres wide. The trunk is typically gnarled and twisted. The small white, feathery flowers, The fruit is a small drupe 1–2.5 centimetres long, thinner-fleshed and smaller in wild plants than in orchard cultivars. Olives are harvested in the green to purple stage. Canned black olives may contain chemicals that turn them black artificially.