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

An EwA companion guide to the common invasive species (fauna + flora) found in Middlesex County (Massachusetts, U.S.). This facilitates their identification in the field, allowing us to remove them when possible. This is a work in progress, and we invite you to tell us what to add. We also ...more ↓

Norway maple 1
Acer platanoides
Garlic Mustard 2
Alliaria petiolata
Multiflora Rose 3
Rosa Multiflora
Black Swallow-Wort 4
Vincetoxicum nigrum
Oriental Bittersweet 4
Celastrus orbiculatus
Japanese Barberry 4
Berberis thunbergii
Japanese Knotweed 5
Fallopia japonica
Porcelain Berry 6
Ampelopsis glandulosa
Common Reed 2
Phragmites australis
Autumn Olive 6
Elaeagnus umbellata
Morrow's Honeysuckle 4
Lonicera morrowii
Mile-a-minute Weed 4
Persicaria perfoliata
Dame's Rocket 6
Hesperis matronalis
Japanese Honeysuckle 4
Lonicera japonica
Carolina Fanwort 7
Cabomba caroliniana
Yellow Iris 6
Iris pseudacorus
Creeping Jenny 4
Lysimachia nummularia
Yellow Horned Poppy 8
Glaucium flavum
Lipaphis alliariae 9
Black Locust 10
Robinia pseudoacacia
Broadleaf Water-milfoil 11
Myriophyllum heterophyllum
European Reed 4
Phragmites australis australis
Grey Willow 4
Salix atrocinerea
Sycamore Maple 4
Acer pseudoplatanus
Broadleaved Pepperweed 12
Lepidium latifolium
African Love Grass 13
Eragrostis curvula
Spotted Lanternfly 14
Lycorma delicatula
Reed Canary Grass 15
Phalaris arundinacea
Water Caltrop 4
Trapa natans
Grey Willow 6
Salix cinerea
Beech Leaf Disease 16
Litylenchus crenatae
Lesser Celandine 17
Ficaria verna
Tree-of-Heaven 4
Ailanthus altissima
Eurasian Water-Milfoil 6
Myriophyllum spicatum
Goutweed 17
Aegopodium podagraria
Bell's Honeysuckle 6
Lonicera × bella
Curly-leaf Pondweed 2
Potamogeton crispus
Slender Leafy Spurge 6
Euphorbia virgata
Emerald Ash Borer 2
Agrilus planipennis
Hemlock Woolly Adelgid 6
Adelges tsugae
Alder Buckthorn 17
Frangula alnus
Common Buckthorn 6
Rhamnus cathartica
Winged Euonymus 2
Euonymus alatus
Purple Loosestrife 6
Lythrum salicaria
Greater Celandine 10
Chelidonium majus

Edited by Claire O'Neill, Joe MacIndewar, Laura J. Costello, meghan1256, and Esther Meirelles, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Kate Danziger, some rights reserved (CC BY-ND), uploaded by Kate Danziger
  • 2. (c) Joe MacIndewar, some rights reserved (CC BY-NC), uploaded by Joe MacIndewar
  • 3. (c) Claire O'Neill, some rights reserved (CC BY-NC-ND)
  • 4. (c) Claire O'Neill, some rights reserved (CC BY-NC), uploaded by Claire O'Neill
  • 5. (c) Jennifer Clifford, some rights reserved (CC BY-NC), uploaded by Jennifer Clifford
  • 6. (c) Bill MacIndewar, some rights reserved (CC BY-NC), uploaded by Bill MacIndewar
  • 7. (c) Eric Keith, some rights reserved (CC BY-NC), uploaded by Eric Keith
  • 8. (c) Chris M. Garside, some rights reserved (CC BY-NC), uploaded by Chris M. Garside
  • 9. (c) Rob Curtis, some rights reserved (CC BY-NC), uploaded by Rob Curtis
  • 10. (c) Daniel Onea, some rights reserved (CC BY-NC), uploaded by Daniel Onea
  • 11. (c) ozarkpoppy, some rights reserved (CC BY-NC), uploaded by ozarkpoppy
  • 12. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
  • 13. (c) Richie Southerton, some rights reserved (CC BY-NC), uploaded by Richie Southerton
  • 14. (c) Serena Lynne, some rights reserved (CC BY-NC), uploaded by Serena Lynne
  • 15. (c) gsarajg, some rights reserved (CC BY-NC), uploaded by gsarajg
  • 16. (c) Deana Tempest Thomas, some rights reserved (CC BY-NC), uploaded by Deana Tempest Thomas
  • 17. (c) Kate Danziger, some rights reserved (CC BY-NC), uploaded by Kate Danziger

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