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Tier 4 - Widespread

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Elaeagnus umbellata Autumn Olive
Prunus avium Bird cherry
Centaurea nigra Black knapweed, Lesser knapweed
Robinia pseudoacacia Black Locust
Reynoutria x bohemica (Fallopia x bohemica, Polygonum x bohemica) Bohemian knotweed
Centaurea jacea Brown knapweed, Brown starthistle
Cirsium vulgare Bull thistle
Euonymus alatus Burning-bush, Winged spindle-tree
Cirsium arvense Canada thistle
Berberis vulgaris Common barberry, European barberry
Rhamnus cathartica Common buckthorn
Phragmites australis Common reed grass
Potamogeton crispus Curly-leaf pondweed
Myriophyllum spicatum Eurasian Watermilfoil
Dipsacus fullonum Fuller's teasel, Wild teasel
Alliaria petiolata Garlic mustard
Berberis thunbergii Japanese barberry
Lonicera japonica Japanese honeysuckle
Microstegium vimineum Japanese stiltgrass
Lonicera morrowii Morrow's Honeysuckle
Artemisia vulgaris Mugwort
Rosa multiflora Multiflora rose
Acer platanoides Norway Maple
Celastrus orbiculatus Oriental Bittersweet
Lythrum salicaria Purple loosestrife
Phalaris arundinacea Reed canarygrass
Lonicera x bella Showy fly honeysuckle/Bell's honeysuckle
Centaurea stoebe Spotted knapweed
Ailanthus altissima Tree-of-heaven
Myosotis scorpioides True forget-me-not, Water forget-me-not
Morus alba White mulberry
Pastinaca sativa Wild parsnip
Rubus phoenicolasius Wineberry
Iris pseudacorus Yellow Iris
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