A Natural Areas Inventory of the - Kansas Natural Heritage Inventory ...

Reed canary grass can become highly invasive, forming dense populations that diminish native
biodiversity or impede efforts at ecosystem restoration. The species is particularly problematic in
wetlands, low prairies, and mesic areas. There is a robust population at FLMR in floodplain
areas of the Missouri River. Control of this species will be difficult due to its abundance and
distribution. We recommend mapping the existing population before a control program is
implemented. To minimize potential colonization of natural areas, future planting of this species
should not be allowed. This species could potentially become a major impediment to current and
future restoration efforts in the floodplain (low prairie and wetland systems) and in other “marsh
habitat” (e.g., shorelines of reservoirs and ponds).
Robinia pseudoacacia (Fabaceae; black locust)
Black locust’s original range was in the southeastern U.S. on the lower slopes of the Appalachian
Mountains with some outliers further north on slopes and forest margins in Illinois, Indiana, and
Missouri. It is a rapidly growing, deciduous tree in the legume family that can grow to 30 m tall.
Most natural reproduction is by root suckering and stump sprouting. Black locust becomes a
management problem when it aggressively invades dry prairies and savannas and shades native
species. It is found on a range of disturbed sites such as pastures, degraded woods, old fields,
roadsides and rights-of-way. Mowing and burning are somewhat ineffective due to vegetative
propagation. Management has concentrated more on chemical control. Haying annually may
prevent first year seedlings from spreading into prairie communities.
Black locust is not currently a problem at FLMR (but see general considerations for exotic trees
and shrubs).
Rhodotypos scandens (Rosaceae; jetbead)
Native to Japan, jetbead is a fast growing, deciduous shrub that can grow to 2 m tall. It has
dense, arching branches and shining black fruit found in groups of 3 or 4 that remain throughout
the winter. It is planted as an ornamental and spreads by both seeds and suckering. It
occasionally escapes from cultivation and may crowd out native species. It is found on a variety
of soils in full sun to shade. Small plants can be removed by hand digging. Larger infestations
can be cut in the fall or winter and an herbicide applied to new growth in the spring.
Jetbead is not currently a problem at FLMR (but see general considerations for exotic trees and
shrubs).
Rosa multiflora (Rosaceae; multiflora rose)
Native to Japan, Korea, and eastern China multiflora rose was introduced in 1866 as rootstock
for ornamental roses. It since has been planted for erosion control, as living fences, cover for
wildlife, and in highway median strips. It is a medium height, thorny shrub with clusters of white
flowers blooming in late spring. It grows aggressively and produces large numbers of fruit that
are eaten and dispersed by birds. It can form dense thickets that exclude native plants. It is found
on a wide range of soil, moisture, and light conditions. It can invade fields, forests, prairies,
some wetlands, and other habitats. For light infestations, pulling individual plants by hand can
be successful. Frequently repeated cutting or mowing can kill mature plants. Routine prescribed
burning will hinder invasion.
NATURAL AREAS INVENTORY OF FT. LEAVENWORTH II 197