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Common Buckthorn
Rhamnus cathartica
Common buckthorn is a deciduous shrub, or small tree, that can grow up to 25 ft in height. Bark is dark gray while inner bark is orange.
Chinese Silver Grass
Miscanthus sinensis
Chinese silver grass rapidly spreads in areas that have been disturbed, such as roadsides. It is considered a wildfire hazard because it produces large amounts of highly flammable, dry plant material.
Cattails – Narrowleaf and Hybrid
Typha angustifolia and T. x glauca
The dense rhizome mats and thick layer of leaf litter that cattails produce, exclude other plants from growing within cattail stands, making them a threat to biodiversity.
Carolina Fanwort
Cabomba caroliniana
Carolina fanwort forms extremely dense stands that clog drainage systems and waterways, interfering with recreational activities. Dense stands also negatively impact native biodiversity.
Canada Thistle
Cirsium arvense
Canada thistle is a perennial thistle that grows 1.5-5 ft. tall. Canada thistle displaces native vegetation, lowering plant and animal diversity. It also poses an economic threat to farmers and ranchers, reducing crop yields and pasture productivity.
Bush Honeysuckle
Lonicera tartarica, L. morrowii, L. maackii x L. bella
The invasive bush honeysuckles are deciduous shrubs that may grow to be 15 ft. tall. Honeysuckle leaves are opposite, have smooth margins, and can vary in shape, being oval or tapered at the tip.
Burning Bush
Euonymus alatus
Burning bush is an invasive ornamental woody shrub that is easily recognized by its vibrant red fall foliage. This invasive species has been introduced into natural landscapes through escaping cultivation.
Bull Thistle
Cirsium vulgare
A tall biennial that produces a single purple flowerhead atop its stem. Leaves, stem and bracts are all covered in hairs or spines which makes it unpalatable to wildlife and livestock.