Edited by Minnesota Scientific and Natural Areas, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Steve Guttman, some rights reserved (CC BY-NC-ND)
- 2. (c) Charlie Hohn, some rights reserved (CC BY), uploaded by Charlie Hohn
- 3. (c) Tom Norton, some rights reserved (CC BY), uploaded by Tom Norton
- 4. (c) Ron Edwards, some rights reserved (CC BY-NC), uploaded by Ron Edwards
- 5. (c) CatherineK, some rights reserved (CC BY-SA), uploaded by CatherineK
- 6. (c) Suzanne Cadwell, some rights reserved (CC BY-NC)
- 7. (c) jon hayes, some rights reserved (CC BY-NC)
- 8. (c) Katja Schulz, some rights reserved (CC BY)
- 9. (c) Susan Elliott, some rights reserved (CC BY-NC), uploaded by Susan Elliott
- 10. (c) Luciana Ranelli, some rights reserved (CC BY-NC), uploaded by Luciana Ranelli
- 11. (c) Josh*m, some rights reserved (CC BY-NC-SA)
- 12. (c) cgbb2004, some rights reserved (CC BY-NC), uploaded by cgbb2004
- 13. (c) Jason Hollinger, some rights reserved (CC BY)
- 14. (c) Rich Stevenson, some rights reserved (CC BY-NC), uploaded by Rich Stevenson
- 15. (c) ben_montgomery, some rights reserved (CC BY-NC), uploaded by ben_montgomery
- 16. (c) John B., some rights reserved (CC BY)
- 17. (c) Liana May, some rights reserved (CC BY-NC), uploaded by Liana May
- 18. (c) Tom Brandt, some rights reserved (CC BY-SA)
- 19. (c) Zack Harris, some rights reserved (CC BY-NC), uploaded by Zack Harris
- 20. (c) Mathew Zappa, some rights reserved (CC BY), uploaded by Mathew Zappa
- 21. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- 22. (c) Salomé, some rights reserved (CC BY-NC-SA)
- 23. (c) aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar
- 24. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
- 25. (c) Joe Walewski, some rights reserved (CC BY-NC), uploaded by Joe Walewski
- 26. (c) Mark Kluge, some rights reserved (CC BY-NC), uploaded by Mark Kluge
- 27. (c) davecz2, some rights reserved (CC BY-SA), uploaded by davecz2
- 28. (c) manual crank, some rights reserved (CC BY-NC-SA)
- 29. (c) Superior National Forest, some rights reserved (CC BY)
- 30. (c) lvconrad1977, some rights reserved (CC BY-NC), uploaded by lvconrad1977
- 31. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 32. (c) thesnaguy, some rights reserved (CC BY-NC-SA), uploaded by thesnaguy
- 33. (c) Fritz Flohr Reynolds, some rights reserved (CC BY-SA)
- 34. (c) Christopher Tracey, some rights reserved (CC BY-NC-SA), uploaded by Christopher Tracey
- 35. (c) Natural England, some rights reserved (CC BY-NC-ND)
- 36. (c) Anita, some rights reserved (CC BY-NC)
- 37. (c) Phil Sellens, some rights reserved (CC BY)
- 38. (c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA)
- 39. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA)
- 40. (c) Mike V.A. Burrell, some rights reserved (CC BY-NC), uploaded by Mike V.A. Burrell
- 41. (c) Alinja, some rights reserved (CC BY-SA)
- 42. (c) zen Sutherland, some rights reserved (CC BY-NC-SA)
- 43. (c) Leo Papandreou, some rights reserved (CC BY-NC-SA)
- 44. (c) Sam Thomas, some rights reserved (CC BY-NC-SA)
- 45. (c) Andy Newman, some rights reserved (CC BY-NC), uploaded by Andy Newman
- 46. (c) jozien, some rights reserved (CC BY-NC), uploaded by jozien
- 47. (c) arghman, some rights reserved (CC BY-NC-ND)
- 48. (c) seankent, some rights reserved (CC BY-NC), uploaded by seankent
- 49. (c) Homer Edward Price, some rights reserved (CC BY)
- 50. (c) Bob Heitzman, some rights reserved (CC BY-NC), uploaded by Bob Heitzman
- 51. (c) James Gaither, some rights reserved (CC BY-NC-ND)
- 52. (c) Eric Keith, some rights reserved (CC BY-NC), uploaded by Eric Keith
- 53. (c) Varina Crisfield, some rights reserved (CC BY-NC-SA)
- 54. (c) Frank Mayfield, some rights reserved (CC BY-SA)
- 55. (c) pverdonk, some rights reserved (CC BY-NC)
- 56. (c) Timothy Valentine, some rights reserved (CC BY-NC-SA)
- 57. (c) Anthony Mendoza, some rights reserved (CC BY-NC-SA)
- 58. (c) Сергей, some rights reserved (CC BY-NC), uploaded by Сергей
- 59. (c) Michael Ellis, some rights reserved (CC BY), uploaded by Michael Ellis
- 60. (c) sea-kangaroo, some rights reserved (CC BY-NC-ND), uploaded by sea-kangaroo
- 61. (c) Peter Gorman, some rights reserved (CC BY-NC-SA)
- 62. (c) Joshua Wysor, some rights reserved (CC BY-NC)
- 63. (c) myiarchus22, some rights reserved (CC BY-NC)
- 64. (c) Jeff Chapman, some rights reserved (CC BY-NC), uploaded by Jeff Chapman
- 65. (c) Lindley Ashline, some rights reserved (CC BY-NC)
- 66. (c) Kerry Woods, some rights reserved (CC BY-NC-ND)
- 67. (c) David Remsen, some rights reserved (CC BY-NC)
- 68. (c) Nicholas, some rights reserved (CC BY)
- 69. (c) Cassi, some rights reserved (CC BY-NC), uploaded by Cassi
- 70. (c) Jörg Hempel, some rights reserved (CC BY-SA)
- 71. (c) G. Gerben, some rights reserved (CC BY-ND), uploaded by G. Gerben
- 72. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 73. (c) Bas Kers (NL), some rights reserved (CC BY-NC-SA)
- 74. (c) Thomas Koffel, some rights reserved (CC BY), uploaded by Thomas Koffel
- 75. (c) David Badke, some rights reserved (CC BY-SA), uploaded by David Badke
- 76. (c) Kari Pihlaviita, some rights reserved (CC BY-NC)
- 77. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 78. (c) Ronald Kielb, some rights reserved (CC BY-NC)
- 79. (c) Jean-François Roch, some rights reserved (CC BY-NC), uploaded by Jean-François Roch
- 80. (c) Haley Selen, some rights reserved (CC BY-NC), uploaded by Haley Selen