Content tagged "invasive species profile"

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...

Lactuca serriola, Prickly Lettuce

Prickly lettuce is an invasive annual or biennial that can reach heights of 6 ft. (1.8m). Cauline leaves (on the stem) are alternate, 2 to 14 in. (5 to 36...

Securigera varia, Crownvetch

Crownvetch is a low-growing, invasive, herbaceous vine that usually forms thickets up to 3 ft. (0.9 m) in height. The leaves are pinnately compound with 9 to...

Spartina alterniflora, Smooth Cordgrass

Smooth cordgrass is a perennial grass that is native to the Atlantic and Gulf Coasts of North America but is invasive along the Pacific Coast. Hollow stems...

Paederia foetida, Skunk Vine

Skunk vine is an invasive perennial climbing or trailing vine that can grow to 30 ft. (9.1 m) long. Plants originate from a woody rootstock and can invade...

Wisteria sinensis, Chinese Wisteria

Chinese wisteria is an invasive deciduous woody vine capable of growing to a height of 40 ft. (12.2 m). Stems can be up to 10 in. (25.4 cm) in diameter, with...

Python molurus ssp. bivittatus, Burmese Python

Invasive Species Updated: October 04, 2013

The Burmese python, one of the largest snake species in the world, has been reported as invading the Everglades since the 1980s. It is a large predator that...

Myriophyllum heterophyllum, Variable Watermilfoil

Variable watermilfoil is an invasive perennial aquatic herb that has leaves of two noticeably different forms. The submerged leaves are finely dissected,...

Najas minor, Brittleleaf Naiad

Brittleleaf naiad is an invasive annual forb that is native to Europe. The highly branched stems can grow up to 4 ft. (1.2 m) in length and fragment easily;...

Vinca major, Bigleaf Periwinkle

Bigleaf periwinkle is an invasive evergreen to semi-evergreen trailing vine that reaches to over 6.6 ft. (2 m) in length. The stems are stout, somewhat...

Humulus japonicus, Japanese Hop

Japanese hop is an invasive annual, climbing or trailing vine that is native to eastern Asia. This vine has five-lobed leaves (generally), downward pointing...

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...

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...

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...

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...

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...

Carduus tenuiflorus, Slenderflower Thistle

Slenderflower thistle is an herbaceous winter annual or biennial plant that invades disturbed areas. The most serious infestations occur in the Pacific...

Dipsacus fullonum, Common Teasel

Common teasel is an invasive biennial plant that exists as a basal rosette until flower stems develop. The erect flower stems reach 6 ft. (1.8 m) in height...

Dipsacus laciniatus, Cutleaf Teasel

Cutleaf teasel is an invasive perennial plant that grows as a basal rosette until sending up a flowering stalk that can reach 6 to 7 ft. (1.8 to 2.1 m) in...

Hieracium aurantiacum, Orange Hawkweed

Orange hawkweed is an invasive perennial plant that can grow up to 11.8 to 23.6 in. (30 to 60 cm) tall and produces a milky sap. Leaves are mostly basal,...

Robinia pseudoacacia, Black Locust

Black locust is a deciduous tree that, while native to parts of the United States, has spread to and become invasive in other parts of the country. Trees...

Chelidonium majus, Greater Celandine

Greater celandine is an invasive perennial native to Europe and the Mediterranean region. It can reach from 1 to 4 ft. (0.3 to 1.2 m) in height. The leaves...

Fatoua villosa, Mulberryweed

Gardens & Landscapes Invasive Species Updated: November 10, 2012

Mulberryweed is an invasive annual that can grow to 2.6 ft. (0.8 m) tall. Stems are branched, erect, and have hooked hairs. Leaves are alternate, stipulate...

Impatiens glandulifera, Ornamental Jewelweed

Ornamental jewelweed is an invasive annual. It is a succulent that can grow to be 3 to 10 ft. (0.9 to 3 m) tall. The stems are purple-tinged and hollow with...

Polygonum caespitosum, Oriental Ladysthumb

Oriental ladysthumb is an invasive annual forb that can reach 6 to 30 in. (15.2 to 76.2 cm) in height and can be either erect or sprawling. Leaves are...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.