Schefflera actinophylla, Octopus Tree


Invasive Species: Schefflera actinophylla, Octopus Tree

Octopus tree is invasive and can grow to 40 ft. (12.2 m) tall. Stems can be single or multi-stemmed. Leaves are palm-like with 7 to 16 leaflets. Leaflets are ovate, entire, and 12 in. (30 cm) long. Flowering occurs in summer to early fall, when large red inflorescences develop at the stem tips. Flowers are red and 1 in. (92.5 cm) wide. Fruits are round, dark purple, and 1/4 in. (7 mm) in …

Populus alba, White Poplar


Invasive Species: Populus alba, White Poplar

White poplar is an invasive tree that can grow 40 to 80 ft. (12.2 to 24.4 m) tall and 40 to 50 ft. (12.2 to 15.2 m) wide. The bark on young trees is smooth and greenish white, becoming gray and wrinkled as trees age. The leaves resemble maple leaves, but the topside of leaves is shiny, dark green while the underside is bright white and hairy. Leaves are 2 to 4 in. …

Phellodendron amurense, Amur Corktree


Invasive Species: Phellodendron amurense, Amur Corktree

Amur corktree is an invasive perennial tree that can grow from 35 to 45 ft. (10 to 14 m) tall. The tree has a short trunk with spreading branches. The bark is thick and corky. Leaves are opposite, compound (divided into 5 to 11 leaflets), and 10 to 15 in. (25 to 38 cm) long. Leaflets are elliptical, acute at the apex, 2.5 to 4.5 in. (6 to 11 cm) long, and smell …

Morus alba, White Mulberry


Invasive Species: Morus alba, White Mulberry

White mulberry is a small, 30 to 50 ft. (9.1 to 15.2 m) tall, deciduous tree that invades disturbed areas throughout the United States. The alternate leaves are polymorphic (variably shaped), 2 to 8 in. (5.1 to 20.3 cm) long, and shiny with blunt teeth and heart-shaped bases. Young bark, the bark along the roots, and the inner bark along the trunk are often bright orange. Older bark is gray with narrow, irregular …

Cupaniopsis anacardioides, Carrotwood


Invasive Species: Cupaniopsis anacardioides, Carrotwood

Carrotwood is an invasive evergreen tree that can grow to a height of 35 ft. (10.7 m). The inner bark is orange; hence the common name. The leaves are compound with 4 to 10 leaflets; each leaflet is 4 to 8 in. (10 to 20 cm) long and shiny with rounded or emarginate (indented) apices. Flowering occurs in the winter when small, greenish white, five-petaled flowers appear in clusters in the leaf axils. Bright …

Casuarina equisetifolia, Australian Pine


Invasive Species: Casuarina equisetifolia, Australian Pine

Australian pine is an invasive deciduous tree that occurs in open coastal habitats including sand beaches, rocky coasts, and sand dunes. Trees can grow to over 100 ft. (30.5 m) in height. The reddish-brown to gray bark is brittle and peels. Branchlets resemble pine needles and are very thin, 4 to 8 in. (10 to 20 cm) long and gray-green. Male and female flowers are present on the same plant and are inconspicuous. …