EwA Guide to Common Invasive Species in Middlesex County (MA, US)

Norway maple
Acer platanoides 1
lesser celandine
Ficaria verna 2
black locust
Robinia pseudoacacia 3
common buckthorn
Rhamnus cathartica 4
tree-of-heaven
Ailanthus altissima 5
Goutweed
Aegopodium podagraria 6
Morrow's honeysuckle
Lonicera morrowii 7
dame's rocket
Hesperis matronalis 8
sycamore maple
Acer pseudoplatanus 9
Grey Willow
Salix cinerea 10
Yellow Iris
Iris pseudacorus 11
autumn olive
Elaeagnus umbellata 12
reed canary grass
Phalaris arundinacea 13
Slender Leafy Spurge
Euphorbia virgata 14
Beech Leaf Disease
Litylenchus crenatae 14
Bell's honeysuckle
Lonicera × bella 15
Curly-leaf Pondweed
Potamogeton crispus 16
water chestnut
Trapa natans 17
Carolina Fanwort
Cabomba caroliniana 18
broadleaved pepperweed
Lepidium latifolium 19
creeping Jenny
Lysimachia nummularia 20
Eurasian water-milfoil
Myriophyllum spicatum 21
Emerald Ash Borer
Agrilus planipennis 15
Hemlock Woolly Adelgid
Adelges tsugae 22
multiflora rose
Rosa multiflora 23
alder buckthorn
Frangula alnus 24
common buckthorn
Rhamnus cathartica 25
Black Swallow-wort
Vincetoxicum nigrum 26
Japanese knotweed
Fallopia japonica 27
winged euonymus
Euonymus alatus 4
Oriental bittersweet
Celastrus orbiculatus 28
purple loosestrife
Lythrum salicaria 29
Greater celandine
Chelidonium majus 30
Japanese barberry
Berberis thunbergii 31
northern bush honeysuckle
Diervilla lonicera 32
garlic mustard
Alliaria petiolata 33
Porcelain Berry
Ampelopsis glandulosa 22
common reed
Phragmites australis 34
Photos:
  • 1. (c) Kate Danziger, some rights reserved (CC BY-ND), uploaded by Kate Danziger
  • 2. (c) syvwlch, some rights reserved (CC BY), uploaded by syvwlch
  • 3. (c) Eric Koberle, some rights reserved (CC BY-NC), uploaded by Eric Koberle
  • 4. (c) Matt Lavin, some rights reserved (CC BY-SA)
  • 5. (c) Matthieu Gauvain, some rights reserved (CC BY-NC), uploaded by Matthieu Gauvain
  • 6. (c) botanygirl, some rights reserved (CC BY), uploaded by botanygirl
  • 7. (c) Fluff Berger, some rights reserved (CC BY-SA), uploaded by Fluff Berger
  • 8. (c) Owen Wolter, some rights reserved (CC BY-NC-ND)
  • 9. (c) Vedran Lastovčić, some rights reserved (CC BY), uploaded by Vedran Lastovčić
  • 10. (c) Janie Easterman, some rights reserved (CC BY-NC-ND)
  • 11. (c) roy pilcher, some rights reserved (CC BY-NC), uploaded by roy pilcher
  • 12. (c) Douglas Goldman, some rights reserved (CC BY-NC), uploaded by Douglas Goldman
  • 13. (c) annk, some rights reserved (CC BY-NC)
  • 14. (c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
  • 15. (c) Leanne Wallis, some rights reserved (CC BY-NC), uploaded by Leanne Wallis
  • 16. (c) Kim, Hyun-tae, some rights reserved (CC BY), uploaded by Kim, Hyun-tae
  • 17. (c) juniorre, some rights reserved (CC BY-NC), uploaded by juniorre
  • 18. (c) Eric Keith, some rights reserved (CC BY-NC), uploaded by Eric Keith
  • 19. (c) Jenn Forman Orth, some rights reserved (CC BY-NC-SA)
  • 20. (c) Andreas Rockstein, some rights reserved (CC BY-SA)
  • 21. (c) Сергей, some rights reserved (CC BY-NC), uploaded by Сергей
  • 22. (c) Joe MacIndewar, some rights reserved (CC BY-NC), uploaded by Joe MacIndewar
  • 23. (c) wplynn, some rights reserved (CC BY-ND)
  • 24. (c) Sten Porse, some rights reserved (CC BY-SA)
  • 25. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
  • 26. (c) jacinta lluch valero, some rights reserved (CC BY-SA)
  • 27. (c) Maja Dumat, some rights reserved (CC BY)
  • 28. (c) Elizabeth Sellers, some rights reserved (CC BY-NC-SA)
  • 29. (c) Colin Meurk, some rights reserved (CC BY-SA), uploaded by Colin Meurk
  • 30. (c) revaz, some rights reserved (CC BY-NC), uploaded by revaz
  • 31. (c) James Gaither, some rights reserved (CC BY-NC-ND)
  • 32. (c) Shihmei Barger 舒詩玫, some rights reserved (CC BY-NC-ND)
  • 33. (c) 57Andrew, some rights reserved (CC BY-NC-ND)
  • 34. (c) anonymous, some rights reserved (CC BY-NC-SA)

Compiled by Claire O'Neill, some rights reserved (CC BY-SA)

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