Invasives
![](https://cisma-suasco.org/wp-content/uploads/2018/03/autumn-olive-225x300.jpg)
Autumn Olive (Elaeagnus umbellata)
Autumn olive is a deciduous shrub that can grow to 20 ft. in height. The stems, buds and leaves have a dense covering of silvery to rusty scales. Leaves are alternate, egg or lance-shaped, smooth margined, dull green above and often with brown scales beneath. Autumn olive flowers in June…
![](https://cisma-suasco.org/wp-content/uploads/2018/03/japanese-knotweed-2-300x200.jpg)
Japanese Knotweed (Fallopia japonica)
Japanese knotweed is a tall herbaceous perennial that can grow to over 10 feet in height. As with all members of this family, the base of the stem above each joint is surrounded by a membranous sheath. The stems are smooth, stout and swollen at joints where the leaf meets…
![](https://cisma-suasco.org/wp-content/uploads/2018/03/japanese-stiltgrass-300x200.jpg)
Japanese Stiltgrass (Microstegium vimineum)
Japanese stiltgrass, native to East Asia, is an annual grass that can grow 5-6 feet in length, but the arching stems make it appear shorter. The name “stiltgrass” comes from the weak, prop-like roots which pull easily out of the ground. The 3” lance-shaped leaves are limy-green and taper at…
![](https://cisma-suasco.org/wp-content/uploads/2018/03/bittersweet-vine-300x200.jpg)
Oriental Bittersweet (Celastrus orbiculatus)
Oriental bittersweet is a deciduous woody perennial plant which grows as a climbing vine and a trailing shrub. Mature plants can attain stem widths of 4 inches in diameter and grow as high as 60 feet into trees. The leaves are alternate, glossy, nearly as wide as they are long…