Hedera helix

Hedera helix, commonly called ivy, common ivy or English ivy, is a clinging evergreen vine in the family Araliaceae, native to most of Europe and parts of western Asia. It climbs using aerial rootlets with matted pads that cling strongly to trees, cliffs and walls, reaching 20 to 30 meters where a vertical surface is available, or spreading as groundcover where none exists; its alternate leaves, 50 to 100 millimeters long, come in two forms, five-lobed on climbing juvenile stems and unlobed and heart-shaped on fertile flowering stems. Small greenish-yellow flowers rich in nectar appear from late summer to late autumn, followed by purple-black to orange-yellow berries 6 to 8 millimeters across that ripen in late winter. Valued within its native range as an ornamental plant that attracts wildlife, it has become invasive in parts of Australia, Canada, New Zealand and the United States, and is listed as Least Concern by the IUCN.