Miscanthus sinensis, Chinese Silvergrass


Invasive Species: Miscanthus sinensis, Chinese Silvergrass

Chinese silvergrass is a densely bunched grass that grows up to 12 ft. (3.7 m) tall and invades roadsides, forest edges, old fields, and other disturbed areas throughout the United States. The leaves are up to 18 in. (45 cm) long, slender, and upright to arching, with sharp tips and rough margins. The midribs are silvery. The terminal panicle is fan-shaped, 2 ft. (0.6 m) in length, and silvery to pink. Flowering occurs …

Imperata cylindrica, Cogongrass


Invasive Species: Imperata cylindrica, Cogongrass

Cogongrass is an aggressively invasive, colony-forming perennial grass that can grow to 6 ft. (1.8 m) tall. Leaves have off-center, whitish midribs and finely serrated margins. Leaves are up to 6 ft. (1.8 m) long, 0.5 to 0.75 in. (1.3 to 1.9 cm) wide, and stiff and have sharp, pointed apexes. Cogongrass is best identified in the spring by the large, fuzzy panicle of flowers and seeds that gives the plant a cottony or …

Phyllostachys aurea, Golden Bamboo


Invasive Species: Phyllostachys aurea, Golden Bamboo

Golden bamboo is an invasive perennial, reedlike plant that can reach heights of 16 to 40 ft. (5 to 12 m). The canes (stems) are hollow with solid joints and can be 1 to 6 in. (2.5 to 15.2 cm) in diameter. Leaves are alternate, 3 to 10 in. (7.6 to 25.4 cm) long, and 0.25 to 0.75 in. (0.6 to 1.9 cm) wide. Flowering is rare (occurring maybe once every 7 to …

Spartina alterniflora, Smooth Cordgrass


Invasive Species: 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 grow from 2 to 4 ft (0.6 to 1.2 m) tall. Leaves are 8 to 20 in. (20 to 50 cm) long and 1 to 8 in. (2.5 to 20 cm) wide and are often purplish at the base. Total plant height can be up to …