• Guides
  • Invasive/Noxious Plants

Invasive/Noxious Plants

Guide to some of the invasive/noxious plants in the US. Try to get rid of them if you can! Some are even edible. However: be responsible when trying to remove invasive species and always be sure! You don't want to accidentally harm a native plant.

dame's rocket 1
Hesperis matronalis
garlic mustard 2
Alliaria petiolata
Japanese knotweed 3
Reynoutria japonica
Japanese honeysuckle 4
Lonicera japonica
creeping thistle 5
Cirsium arvense
common ragweed 6
Ambrosia artemisiifolia
Columbus grass 7
Sorghum bicolor × halepense
kudzu 8
Pueraria montana
Johnson grass 9
Sorghum halepense
musk thistle 10
Carduus nutans
giant ragweed 11
Ambrosia trifida
Perennial Sow Thistle 12
Sonchus arvensis
Amur honeysuckle 13
Lonicera maackii
Bohemian Knotweed 12
Reynoutria × bohemica
Chinese Buckthorn 14
Rhamnus utilis
Rhamnus arguta 15
autumn olive 16
Elaeagnus umbellata
common buckthorn 17
Rhamnus cathartica
Dahurian Buckthorn
Rhamnus davurica
Giant Knotweed 18
Reynoutria sachalinensis
Giant Hogweed 19
Heracleum mantegazzianum
alder buckthorn 20
Frangula alnus
Oriental bittersweet 21
Celastrus orbiculatus
poison hemlock 22
Conium maculatum
Rhamnus japonica 21
multiflora rose 23
Rosa multiflora
Morrow's honeysuckle 24
Lonicera morrowii
Russian olive 25
Elaeagnus angustifolia
lesser celandine 26
Ficaria verna
thorny olive 27
Elaeagnus pungens
Winter honeysuckle 28
Lonicera fragrantissima
purple loosestrife 29
Lythrum salicaria
Tatarian honeysuckle 30
Lonicera tatarica
purple loosestrife 29
Lythrum salicaria
common ivy 31
Hedera helix
Norway maple 32
Acer platanoides
Japanese barberry 33
Berberis thunbergii
Cogon Grass 34
Imperata cylindrica
Hydrilla 35
Hydrilla verticillata
Feathered Mosquito Fern 36
Azolla pinnata
anchored water hyacinth 37
Pontederia azurea
Feather Caulerpa 38
Caulerpa taxifolia
Indian Swampweed 39
Hygrophila polysperma
Asian Water Hyacinth 40
Pontederia hastata
Sessile Marshweed 41
Limnophila sessiliflora
Broad-leaved paperbark 42
Melaleuca quinquenervia
Water Morning Glory 34
Ipomoea aquatica
Lobed Salvinia 43
Salvinia biloba
Heartleaf False Pickerelweed 34
Pontederia vaginalis
Curly Waterweed 44
Lagarosiphon major
Arrowhead 45
Sagittaria sagittifolia
Eared Watermoss 46
Salvinia auriculata
duck-lettuce 34
Ottelia alismoides
Aeginetia 47
Giant Salvinia 48
Salvinia molesta
Paintflowers 8
Alectra
wetland nightshade
Solanum tampicense
Branched Bur-reed 49
Sparganium erectum
Striga 50
sticky snakeroot 51
Ageratina adenophora
Egyptian acacia 52
Vachellia nilotica
jeweled distaff thistle 53
Carthamus oxyacantha
Onion-Leafed Asphodel 54
Asphodelus fistulosus
Sessile Joyweed 55
Alternanthera sessilis
Capeweed 56
Arctotheca calendula
animated oat 57
Avena sterilis
Abyssinian Finger Grass 58
Digitaria abyssinica
Long-Plumed Finger Gras 59
Digitaria velutina
Wild Oat Grass 60
Chrysopogon aciculatus
tropical spiderwort 61
Commelina benghalensis
lightning weed
Drymaria arenarioides
carnation spurge 62
Euphorbia terracina
Imperata brasiliensis
Cogon Grass 34
Imperata cylindrica
southern three-cornered jack 55
Rumex hypogaeus
Meadow Fleabane 63
Pentanema britannica
common milkpea 64
Galega officinalis
Devil's Thorn 65
Rumex spinosus
Flexuose Climbing Fern 66
Lygodium flexuosum
bearded creeper 67
Crupina vulgaris
African boxthorn 68
Lycium ferocissimum
Leptochloa chinensis 69
heartleaf hempvine 70
Mikania cordata
Ischaemum rugosum 69
mile-a-minute 71
Mikania micrantha
melastomes 72
Melastoma
Climbing Maidenhair 73
Lygodium microphyllum
Giant Sensitive Plant 74
Mimosa pigra
Cape Tulip 75
Moraea collina
Pale Tulp 76
Moraea pallida
giant false sensitive plant 77
Mimosa diplotricha
stemless cotton-thistle 78
Onopordum acaulon
Great Tulip 79
Moraea flaccida
Tiger Pear 80
Opuntia aurantiaca
Two-leaved Cape tulip 80
Moraea miniata
Apricot Tulp 55
Moraea ochroleuca
Illyrian thistle 81
Onopordum illyricum
Nassella Tussock 82
Nassella trichotoma
Kikuyu Grass 83
Cenchrus clandestinus
African Feather Grass 84
Cenchrus caudatus

Edited by Sofie, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Owen Wolter, some rights reserved (CC BY-NC-ND)
  • 2. (c) 57Andrew, some rights reserved (CC BY-NC-ND)
  • 3. (c) Merike Linnamägi, some rights reserved (CC BY-NC-ND)
  • 4. (c) Ron Stephens, some rights reserved (CC BY-NC), uploaded by Ron Stephens
  • 5. (c) Almantas Kulbis, some rights reserved (CC BY-NC), uploaded by Almantas Kulbis
  • 6. (c) Erik Jørgensen, some rights reserved (CC BY-NC-SA)
  • 7. (c) Thomas Wrbka, some rights reserved (CC BY-NC), uploaded by Thomas Wrbka
  • 8. (c) 方伊琳(阿鈣), some rights reserved (CC BY-NC), uploaded by 方伊琳(阿鈣)
  • 9. (c) Kimberlie Sasan, some rights reserved (CC BY-ND), uploaded by Kimberlie Sasan
  • 10. (c) Izabella Farr, some rights reserved (CC BY-NC), uploaded by Izabella Farr
  • 11. (c) gwen_cox, some rights reserved (CC BY-NC)
  • 12. (c) Sergey Mayorov, some rights reserved (CC BY-NC), uploaded by Sergey Mayorov
  • 13. (c) Ken Potter, some rights reserved (CC BY-NC), uploaded by Ken Potter
  • 14. (c) pat_lorch, some rights reserved (CC BY-NC-SA), uploaded by pat_lorch
  • 15. (c) sunwenhao90, some rights reserved (CC BY-NC), uploaded by sunwenhao90
  • 16. (c) Douglas Goldman, some rights reserved (CC BY-NC), uploaded by Douglas Goldman
  • 17. (c) Matt Lavin, some rights reserved (CC BY-SA)
  • 18. no rights reserved, uploaded by Daniel Atha
  • 19. (c) iangregory, some rights reserved (CC BY-NC)
  • 20. (c) Sten Porse, some rights reserved (CC BY-SA)
  • 21. (c) Jeff Skrentny, some rights reserved (CC BY-NC), uploaded by Jeff Skrentny
  • 22. (c) Kate Bullock, some rights reserved (CC BY-NC), uploaded by Kate Bullock
  • 23. (c) sheoftheplants, some rights reserved (CC BY-NC)
  • 24. (c) Fluff Berger, some rights reserved (CC BY-SA), uploaded by Fluff Berger
  • 25. (c) tejnarayan, some rights reserved (CC BY-NC)
  • 26. (c) syvwlch, some rights reserved (CC BY), uploaded by syvwlch
  • 27. (c) Dave Holland, some rights reserved (CC BY-NC), uploaded by Dave Holland
  • 28. no rights reserved, uploaded by Guy Babineau
  • 29. (c) birderbb, some rights reserved (CC BY-NC), uploaded by birderbb
  • 30. (c) kateluff, some rights reserved (CC BY-NC), uploaded by kateluff
  • 31. (c) luca_naomi, some rights reserved (CC BY-NC)
  • 32. (c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
  • 33. (c) Mark Kluge, some rights reserved (CC BY-NC-ND), uploaded by Mark Kluge
  • 34. (c) 葉子, some rights reserved (CC BY-NC), uploaded by 葉子
  • 35. (c) mfeaver, some rights reserved (CC BY), uploaded by mfeaver
  • 36. (c) nomennudum, some rights reserved (CC BY-NC), uploaded by nomennudum
  • 37. (c) Jonathan Hiew, some rights reserved (CC BY-NC-SA)
  • 38. (c) Richard Ling, some rights reserved (CC BY-NC-ND), uploaded by Richard Ling
  • 39. (c) Shiwalee Samant, some rights reserved (CC BY-NC), uploaded by Shiwalee Samant
  • 40. (c) budak, some rights reserved (CC BY-NC), uploaded by budak
  • 41. (c) H.T.Cheng, some rights reserved (CC BY-NC), uploaded by H.T.Cheng
  • 42. (c) gillbsydney, some rights reserved (CC BY-NC), uploaded by gillbsydney
  • 43. (c) Guille Ivan Spajic, some rights reserved (CC BY-NC), uploaded by Guille Ivan Spajic
  • 44. (c) Davide Grigoletto, some rights reserved (CC BY-NC), uploaded by Davide Grigoletto
  • 45. (c) Joost ., some rights reserved (CC BY-NC), uploaded by Joost .
  • 46. (c) Renata Xavier, some rights reserved (CC BY-NC), uploaded by Renata Xavier
  • 47. (c) Jayesh Patil, some rights reserved (CC BY-NC-ND)
  • 48. (c) Hong, some rights reserved (CC BY-NC), uploaded by Hong
  • 49. (c) Bastiaan, some rights reserved (CC BY-NC-ND)
  • 50. (c) tjeerd, some rights reserved (CC BY-NC), uploaded by tjeerd
  • 51. (c) Ixitixel, some rights reserved (CC BY-SA)
  • 52. (c) janet_taylor, some rights reserved (CC BY-NC), uploaded by janet_taylor
  • 53. (c) Nasser Halaweh, some rights reserved (CC BY), uploaded by Nasser Halaweh
  • 54. (c) jbiloba, some rights reserved (CC BY-NC)
  • 55. (c) Tony Rebelo, some rights reserved (CC BY-SA), uploaded by Tony Rebelo
  • 56. (c) Reiner Richter, some rights reserved (CC BY-NC-SA), uploaded by Reiner Richter
  • 57. (c) Javier Peralta de Andrés, some rights reserved (CC BY-NC), uploaded by Javier Peralta de Andrés
  • 58. no rights reserved, uploaded by Bat
  • 59. (c) feliscatus18, some rights reserved (CC BY-NC), uploaded by feliscatus18
  • 60. (c) Han-Ting Liu, some rights reserved (CC BY), uploaded by Han-Ting Liu
  • 61. (c) BJ Stacey, some rights reserved (CC BY-NC), uploaded by BJ Stacey
  • 62. (c) Chris, some rights reserved (CC BY-NC), uploaded by Chris
  • 63. (c) Nuuuuuuuuuuul, some rights reserved (CC BY)
  • 64. (c) Sami, some rights reserved (CC BY-NC-SA)
  • 65. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
  • 66. (c) naturewatchwidow, some rights reserved (CC BY), uploaded by naturewatchwidow
  • 67. (c) jacinta lluch valero, some rights reserved (CC BY-SA)
  • 68. (c) ribbik, some rights reserved (CC BY-NC), uploaded by ribbik
  • 69. (c) IRRI Photos, some rights reserved (CC BY-NC-SA)
  • 70. (c) 石川 Shihchuan, some rights reserved (CC BY-NC-SA)
  • 71. (c) 高山田鼠, some rights reserved (CC BY), uploaded by 高山田鼠
  • 72. (c) Anil Kumar Verma, some rights reserved (CC BY-NC), uploaded by Anil Kumar Verma
  • 73. (c) williamdomenge9, all rights reserved, uploaded by williamdomenge9
  • 74. (c) Kevin Meza, some rights reserved (CC BY-NC), uploaded by Kevin Meza
  • 75. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
  • 76. (c) copper, some rights reserved (CC BY-NC), uploaded by copper
  • 77. (c) Jason Alexander, some rights reserved (CC BY-NC), uploaded by Jason Alexander
  • 78. (c) cecoual-egl, some rights reserved (CC BY-NC), uploaded by cecoual-egl
  • 79. (c) Geoffrey Cox, some rights reserved (CC BY), uploaded by Geoffrey Cox
  • 80. (c) Craig Peter, some rights reserved (CC BY-NC), uploaded by Craig Peter
  • 81. (c) David Carrera, some rights reserved (CC BY-NC-ND), uploaded by David Carrera
  • 82. (c) wantok, some rights reserved (CC BY-NC)
  • 83. (c) Harry Rose, some rights reserved (CC BY)
  • 84. (c) Dave Richardson, some rights reserved (CC BY), uploaded by Dave Richardson

Member of the iNaturalist Network   |   Powered by iNaturalist open source software |   Documentation for developers