 Brazilian elodea Egeria densa
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butterflybush Buddleja davidii
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 common fennel Foeniculum vulgare
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 common reed (non-native genotypes) Phragmites australis
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 Dalmatian toadflax Linaria dalmatica ssp. dalmatica
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 Eurasian watermilfoil Myriophyllum spicatum
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 Gorse Ulex europaeus
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 hairy willowherb Epilobium hirsutum
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 hawkweed, orange Hieracium aurantiacum
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 Hawkweed, yellow Hieracium caespitosum
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herb-Robert Geranium robertianum
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 knapweed, brown Centaurea jacea
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knapweed, diffuse
Centaurea diffusa
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knapweed, meadow Centaurea jacea x nigra
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 knapweed, spotted Centaurea stoebe
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 knotweed, Bohemian Polygonum x bohemicum
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 knotweed, giant Polygonum sachalinense
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knotweed, Himalayan Polygonum polystachyum
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 knotweed, Japanese Polygonum cuspidatum
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 loosestrife, purple Lythrum salicaria
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 parrotfeather Myriophyllum aquaticum
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 poison hemlock Conium maculatum
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 Scotch broom Cytisus scoparius
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 spurge laurel
Daphne laureola
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 sulfur cinquefoil Potentilla recta
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 tansy ragwort Senecio jacobaea
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 thistle, musk Carduus nutans
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 velvetleaf Abutilon theophrasti
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 wild chervil Anthriscus sylvestris
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 yellow archangel Lamiastrum galeobdolon
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