Olea europaea is a perennial tree that can grow from 26.2-49.2 ft. (8-15 m) tall.
Foliage
Leaves are thick, 1.6 in. (4 cm) long, lanceolate, opposite, leathery, somewhat hairy, and dark green on upper surface and greyish green on lower surface.
Flowers
Flowers are small, yellow to white in color, and clustered in groups of 15-30 flowers. Flowers bloom in early summer.
Fruit
Fruit is a drupe that is ovoid, 0.8-1 in. (2-2.5 cm) long, and green to blackish violet in color. The edible fruit surrounds the dark violet round seed.
Ecological Threat
Olea europaea is being grown as a crop in some states. It has escaped cultivation and can be found in disturbed areas including grasslands, scrublands, and urban areas. Olea europaea is native to Africa, Asia-temperate, and Europe.