Invasive Plants of Pittsburgh

Bush Honeysuckle
Lonicera maackii 1
Japanese Honeysuckle
Lonicera japonica 2
grapevines
Vitis 3
Tree of Heaven
Ailanthus excelsa 4
Burdock
Arctium minus 5
Canada thistle
Cirsium arvense 6
Chinese silvergrass
Miscanthus sinensis 7
Crown vetch
Securigera varia 8
Garlic mustard
Alliaria petiolata 9
Giant hogweed
Heracleum mantegazzianum 10
Goutweed
Aegopodium podagraria 11
Japanese knotweed
Fallopia japonica 12
Japanese stiltgrass
Microstegium vimineum 13
Mugwort
Artemisia vulgaris 14
Vinca
Vinca minor 15
Poison hemlock
Conium maculatum 16
Purple loosestrife
Lythrum salicaria 17
Winged burning bush
Euonymus alatus 18
Common buckthorn
Rhamnus cathartica 19
European barberry
Berberis vulgaris 20
Japanese barberry
Berberis thunbergii 21
Jetbead
Rhodotypos scandens 22
Multiflora rose
Rosa multiflora 23
European privet
Ligustrum vulgare 24
English ivy
Hedera helix 25
Mile-a-minute
Persicaria perfoliata 26
Oriental bittersweet
Celastrus orbiculatus 27
Porcelainberry
Ampelopsis glandulosa brevipedunculata 28
Winter creeper
Euonymus fortunei 29
Callery pear
Pyrus calleryana 30
Norway maple
Acer platanoides 31
Princess tree
Paulownia tomentosa 32
Siberian elm
Ulmus pumila 18
Sycamore maple
Acer pseudoplatanus 33
Bull thistle
Cirsium vulgare 34
Photos:
  • 1. (c) Leonora Enking, some rights reserved (CC BY-SA)
  • 2. (c) CameliaTWU (away for a while), some rights reserved (CC BY-NC-ND)
  • 3. (c) Cody Hough, some rights reserved (CC BY-NC-SA)
  • 4. (c) taijioto, all rights reserved, uploaded by taijioto
  • 5. (c) Willie Angus, some rights reserved (CC BY-NC)
  • 6. (c) Matt Lavin, some rights reserved (CC BY)
  • 7. (c) kanegen, some rights reserved (CC BY)
  • 8. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
  • 9. (c) AnneTanne, some rights reserved (CC BY-NC)
  • 10. (c) Ian Robertson, some rights reserved (CC BY-NC-SA)
  • 11. (c) Biopix, some rights reserved (CC BY-NC)
  • 12. (c) Marie Studer, some rights reserved (CC BY), uploaded by Marie Studer
  • 13. (c) 2009 Barry Rice, some rights reserved (CC BY-NC-SA)
  • 14. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
  • 15. (c) David Good, some rights reserved (CC BY-NC-ND)
  • 16. (c) Mick Talbot, some rights reserved (CC BY)
  • 17. (c) Picasa, some rights reserved (CC BY-NC)
  • 18. (c) Matt Lavin, some rights reserved (CC BY-SA)
  • 19. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
  • 20. (c) Werner Witte, some rights reserved (CC BY-NC)
  • 21. (c) James Gaither, some rights reserved (CC BY-NC-ND)
  • 22. (c) Steve Guttman NYC, some rights reserved (CC BY-NC-ND)
  • 23. (c) David Shand, some rights reserved (CC BY-ND)
  • 24. (c) Radio Tonreg, some rights reserved (CC BY)
  • 25. (c) Wikimedia Commons, some rights reserved (CC BY-SA)
  • 26. (c) 潘立傑 LiChieh Pan, some rights reserved (CC BY-NC-SA)
  • 27. (c) Elizabeth Sellers, some rights reserved (CC BY-NC-SA)
  • 28. (c) Donald Hobern, some rights reserved (CC BY)
  • 29. (c) annethelibrarian, some rights reserved (CC BY-NC-ND)
  • 30. (c) Jaybird, some rights reserved (CC BY-NC-SA)
  • 31. (c) Marylise Doctrinal, some rights reserved (CC BY-NC-ND)
  • 32. (c) Eric Hunt, some rights reserved (CC BY-NC-ND)
  • 33. (c) flora cyclam, some rights reserved (CC BY-NC-SA)
  • 34. (c) beautifulcataya, some rights reserved (CC BY-NC-ND)

Compiled by taijioto, some rights reserved (CC BY-SA)

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