Invasive Plants to Watch for on Wassumkeag Island (Sears Island)

Some of these plants are already present on the island, and some are found nearby. All of these are destructive to native plants, animals and ecosystems. Please report any invasive plants from this list you see on the island! You can report invasives on our website at ...more ↓

7249131706 c24000b8f0 m
Winged Euonymus 1
Euonymus alatus
16647291293 32698e46c5 m
Garlic Mustard 2
Alliaria petiolata
Cypress Spurge 3
Euphorbia cyparissias
4741443443 2fe985233e m
Garden lupine 4
Lupinus polyphyllus
Purple Loosestrife
Lythrum salicaria
3556516419 2fd506bcb5 m
Morrow's Honeysuckle 5
Lonicera morrowii
14329451252 4cda4bb358 m
Multiflora Rose 6
Rosa multiflora
Glossy Buckthorn 3
Frangula alnus
3943672583 66a7294444 m
Common Buckthorn 7
Rhamnus cathartica
3053582392 1e652295c9 m
Autumn Olive 8
Elaeagnus umbellata
263732993 5c1ab129f9 m
Himalayan Balsam 9
Impatiens glandulifera
240px cynanchum louiseae 3800
Black Swallow-wort 10
Cynanchum louiseae
Japanese Knotweed 11
Fallopia japonica
4651430506 a03378e888 m
Oriental Bittersweet 12
Celastrus orbiculatus
4972345384 d7bafb0d5b m
Creeping Thistle 13
Cirsium arvense
3804996777 6f334220ac m
Bull Thistle 14
Cirsium vulgare
5540458145 138489595f m
Coltsfoot 15
Tussilago farfara
4097992082 3f0368486f m
Norway Maple 16
Acer platanoides
Purple Loosestrife
Lythrum salicaria
4152920042 6af1545f93 m
Japanese Barberry 17
Berberis thunbergii
3622151271 2a9796c111 m
Bittersweet Nightshade 18
Solanum dulcamara
3556516419 2fd506bcb5 m
Morrow's Honeysuckle 5
Lonicera morrowii
Tatarian honeysuckle 19
Lonicera tatarica
3747201579 53721ceba3 m
Common Valerian 20
Valeriana officinalis
2576535064 4f0133aa3d m
Giant Hogweed 21
Heracleum mantegazzianum
16647291293 32698e46c5 m
Garlic Mustard 2
Alliaria petiolata
3988253348 a82fd8b576 m
tufted hair grass 1
Deschampsia cespitosa
Woods Bluegrass
Poa nemoralis nemoralis
4658497230 a902cdc888 m
Reed Canarygrass 22
Phalaris arundinacea
Common Reed 23
Phragmites australis

Edited by Aleta M., some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Matt Lavin, some rights reserved (CC BY-SA)
  • 2. (c) 57Andrew, some rights reserved (CC BY-NC-ND)
  • 3. (c) AnneTanne, some rights reserved (CC BY-NC)
  • 4. (c) Per Ola Wiberg, some rights reserved (CC BY)
  • 5. (c) Carolannie--temporarily AWOL, some rights reserved (CC BY-NC-ND)
  • 6. (c) wplynn, some rights reserved (CC BY-ND)
  • 7. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
  • 8. (c) Dave Spier, some rights reserved (CC BY-NC-SA)
  • 9. (c) Roy Wichert-Gonsalves, some rights reserved (CC BY-NC-ND)
  • 10. (c) Jomegat, some rights reserved (CC BY-SA)
  • 11. (c) marie, some rights reserved (CC BY), uploaded by Marie Studer
  • 12. (c) Elizabeth Sellers, some rights reserved (CC BY-NC-SA)
  • 13. (c) Matt Lavin, some rights reserved (CC BY)
  • 14. (c) beautifulcataya, some rights reserved (CC BY-NC-ND)
  • 15. (c) M.M. R, some rights reserved (CC BY-NC)
  • 16. (c) Marylise Doctrinal, some rights reserved (CC BY-NC-ND)
  • 17. (c) James Gaither, some rights reserved (CC BY-NC-ND)
  • 18. (c) Giuseppe Quattrone, some rights reserved (CC BY-NC-ND)
  • 19. (c) Charlie Hohn, some rights reserved (CC BY)
  • 20. (c) Bart Busschots, some rights reserved (CC BY-NC-ND)
  • 21. (c) Cody Hough, some rights reserved (CC BY-NC-SA)
  • 22. (c) stillriverside, some rights reserved (CC BY-NC-ND)
  • 23. (c) 2006 Luigi Rignanese, some rights reserved (CC BY-NC)

Is this inappropriate, spam, or offensive? Add a Flag