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Tier 4 - Widespread

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