Invasive Species: Aegopodium podagraria, Bishops Goutweed
Bishops goutweed is an invasive creeping perennial that can grow to 3 ft. (1 m) tall. The compound leaves are alternate and have sheathing bases. The leaves at the top of the stem …
Bishops goutweed is an invasive creeping perennial that can grow to 3 ft. (1 m) tall. The compound leaves are alternate and have sheathing bases. The leaves at the top of the stem …
Russian knapweed is an invasive perennial forb that can grow to 3 ft. (1 m) in height. Stems originate from a basal rosette of leaves. The rosette leaves can be unlobed to very …
Purple starthistle is a biennial to perennial invasive plant. It grows 2 to 3 ft. (0.6 to 0.9 m) tall. The stems and leaves are covered with fine hairs. Lower and basal leaves …
Slenderflower thistle is an herbaceous winter annual or biennial plant that invades disturbed areas. The most serious infestations occur in the Pacific coastal states, but slenderflower thistle also occurs sporadically in the eastern …
Bittersweet nightshade is an invasive perennial plant native to Eurasia. Plants can reach up to 6.6 ft. (2 m) tall, either erect or clambering. Leaves are petiolate, alternate, three-lobed (upper part of the …
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 woody, and green. The opposite, glossy leaves are …
Hoary cress, or whitetop, is an invasive perennial forb in the mustard family that can grow up to 2 ft. (0.6 m) tall. The leaves are soft, gray-green, 1.5 to 3 in. (3.7 …
Absinth wormwood (absinthium, common wormwood) is an invasive herbaceous perennial plant that can grow up to 5 ft. (1.5 m) tall. It has many branching stems arising from a woody base. Leaves are …
Lesser burdock is a tall (up to 6 ft. [1.8 m]) invasive biennial forb that occurs throughout the United States. First-year plants form large rosettes. A stout flowering stalk is formed in the …
Wild garlic is an invasive perennial plant that originates from a bulb. Plants range from 11 to 35 in. (30 to 90 cm) in height and have tubular leaves. In May to June, …