Photos:
- 1. (c) Frank Mayfield, some rights reserved (CC BY-SA)
- 2. (c) Matt Lavin, some rights reserved (CC BY-SA)
- 3. (c) pasa47, some rights reserved (CC BY)
- 4. (c) Mart Hughes, some rights reserved (CC BY-NC), uploaded by Mart Hughes
- 5. (c) Hannah Floyd, some rights reserved (CC BY-NC), uploaded by Hannah Floyd
- 6. (c) Plant Image Library, some rights reserved (CC BY-SA)
- 7. (c) Hilbert Buist, some rights reserved (CC BY-NC-SA)
- 8. (c) Gary James, some rights reserved (CC BY-NC), uploaded by Gary James
- 9. (c) AnneTanne, some rights reserved (CC BY-NC)
- 10. (c) Steve Chilton, some rights reserved (CC BY-NC-ND)
- 11. (c) David Hofmann, some rights reserved (CC BY-NC-ND)
- 12. (c) Tim Messick, some rights reserved (CC BY-NC), uploaded by Tim Messick
- 13. (c) ashegan, some rights reserved (CC BY-NC), uploaded by ashegan
- 14. (c) HermannFalkner/sokol, some rights reserved (CC BY-NC-SA)
- 15. (c) Patrick Alexander, some rights reserved (CC BY-NC-ND)
- 16. (c) Tyler Christensen, some rights reserved (CC BY-NC), uploaded by Tyler Christensen
- 17. (c) Andreas Rockstein, some rights reserved (CC BY-SA)
- 18. (c) Paul Tavares, some rights reserved (CC BY-NC), uploaded by Paul Tavares
- 19. (c) Mark Kluge, some rights reserved (CC BY-NC-ND), uploaded by Mark Kluge
- 20. (c) Hermann Falkner, some rights reserved (CC BY-NC)
- 21. (c) Laurel F, some rights reserved (CC BY-SA)
- 22. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
- 23. (c) MPF, some rights reserved (CC BY-SA)
- 24. (c) Donna, some rights reserved (CC BY-ND)
- 25. (c) Jacky Judas, some rights reserved (CC BY), uploaded by Jacky Judas
- 26. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 27. (c) James Gaither, some rights reserved (CC BY-NC-ND)
- 28. (c) sea-kangaroo, some rights reserved (CC BY-NC-ND), uploaded by sea-kangaroo
- 29. (c) Fraser Watson, some rights reserved (CC BY-NC), uploaded by Fraser Watson
- 30. (c) Morgan Stickrod, some rights reserved (CC BY-NC), uploaded by Morgan Stickrod
- 31. (c) John Ratzlaff, some rights reserved (CC BY-NC-ND), uploaded by John Ratzlaff
- 32. (c) Jean-François Roch, some rights reserved (CC BY-NC), uploaded by Jean-François Roch
- 33. (c) Mark Fishbein, some rights reserved (CC BY-NC), uploaded by Mark Fishbein
- 34. (c) J. N. Stuart, all rights reserved, uploaded by J. N. Stuart
- 35. no rights reserved, uploaded by Patrick Alexander
- 36. (c) Stan Shebs, some rights reserved (CC BY-SA)
- 37. (c) Andrew Hollander, some rights reserved (CC BY-NC-SA)
- 38. (c) Rick Travis, some rights reserved (CC BY-NC), uploaded by Rick Travis
- 39. (c) John Hilty, some rights reserved (CC BY-NC)
- 40. (c) Steve Wells, some rights reserved (CC BY-NC), uploaded by Steve Wells
- 41. (c) Rick Williams, some rights reserved (CC BY-NC), uploaded by Rick Williams
- 42. (c) Kimberlie Sasan, some rights reserved (CC BY-ND), uploaded by Kimberlie Sasan
- 43.
Vanderhorst, James P;
Cooper, Stephen V;
Heidel, Bonnie L;
United States.Bureau of Land Management;
Montana Natural Heritage Program, no known copyright restrictions (public domain)
- 44. (c) Anna Mauk, some rights reserved (CC BY-NC), uploaded by Anna Mauk
- 45. (c) Joe Decruyenaere, some rights reserved (CC BY-SA)
- 46. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 47. (c) Erin Faulkner, some rights reserved (CC BY-NC), uploaded by Erin Faulkner
- 48. (c) Pat Deacon, some rights reserved (CC BY-NC), uploaded by Pat Deacon
- 49. (c) Huerta Orgázmika, some rights reserved (CC BY)
- 50. (c) Chuck Sexton, some rights reserved (CC BY-NC), uploaded by Chuck Sexton
- 51. AnRo0002, no known copyright restrictions (public domain)
- 52. (c) beautifulcataya, some rights reserved (CC BY-NC-ND)
- 53. (c) Jon Sullivan, some rights reserved (CC BY)
- 54. (c) Willie Angus, some rights reserved (CC BY-NC)
- 55. (c) Alwyn Ladell, some rights reserved (CC BY-NC-ND)
- 56. (c) Franz Xaver, some rights reserved (CC BY-SA)
- 57. (c) Radio Tonreg, some rights reserved (CC BY)
- 58. (c) Dorota (Dorothy), some rights reserved (CC BY-SA)
- 59. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
- 60. (c) George F Mayfield, some rights reserved (CC BY-SA)
- 61. (c) Ken Kellman, some rights reserved (CC BY-NC), uploaded by Ken Kellman
- 62. (c) Ken Bosma, some rights reserved (CC BY-NC), uploaded by Ken Bosma
- 63. (c) José María Escolano, some rights reserved (CC BY-NC-SA)
- 64. (c) Udo Schmidt, some rights reserved (CC BY-SA)
- 65. (c) Carolannie--slow return, some rights reserved (CC BY-NC-ND)
- 66. (c) Steve Guttman, some rights reserved (CC BY-NC-ND)
- 67. (c) Moosicorn Ranch, some rights reserved (CC BY-NC-ND)
- 68. (c) Lauren Baur, some rights reserved (CC BY-NC-ND), uploaded by Lauren Baur
- 69. (c) Matthew Herron, some rights reserved (CC BY-NC), uploaded by Matthew Herron
- 70. (c) Anthony Mendoza, some rights reserved (CC BY-NC-SA)
- 71. (c) ellen hildebrandt, some rights reserved (CC BY-NC), uploaded by ellen hildebrandt
- 72. (c) Зеленкова Виктория, some rights reserved (CC BY-NC), uploaded by Зеленкова Виктория
- 73. (c) Linda Jo Conn, some rights reserved (CC BY-NC), uploaded by Linda Jo Conn
- 74. (c) zen Sutherland, some rights reserved (CC BY-NC-SA)
- 75. (c) Dinesh Valke, some rights reserved (CC BY-NC-SA)
- 76. (c) Bryan, some rights reserved (CC BY-NC), uploaded by Bryan
- 77. (c) Matthias Barth, some rights reserved (CC BY-NC)
- 78. (c) 2004 Brent Miller, some rights reserved (CC BY-NC-SA)
- 79. (c) Brent Franklin, some rights reserved (CC BY-NC), uploaded by Brent Franklin
- 80. (c) Franco Folini, some rights reserved (CC BY)
- 81. (c) Salomé Bielsa, some rights reserved (CC BY-NC-SA)
- 82. (c) Matt Webb, some rights reserved (CC BY-NC), uploaded by Matt Webb
- 83. (c) 2002 Gary A. Monroe, some rights reserved (CC BY-NC)
- 84. (c) Katja Schulz, some rights reserved (CC BY)
- 85. (c) Keith Kanoti, Maine Forest Service, USA, some rights reserved (CC BY)
- 86. (c) luigi1969, some rights reserved (CC BY-NC)
- 87. (c) Peter O'Connor, some rights reserved (CC BY-SA)
- 88. (c) 2009 Keir Morse, some rights reserved (CC BY-NC-SA)
- 89. (c) eyeweed, some rights reserved (CC BY-NC-ND)
- 90. (c) M.M. R, some rights reserved (CC BY-NC)
- 91. (c) conniegrube, some rights reserved (CC BY-NC)
- 92. (c) John, some rights reserved (CC BY-NC)
- 93. (c) Aidan R, some rights reserved (CC BY-NC), uploaded by Aidan R
- 94. no rights reserved, uploaded by Craig Martin
- 95. (c) Juan Carlos López Domínguez, some rights reserved (CC BY-NC), uploaded by Juan Carlos López Domínguez
- 96. (c) Ben VanderWeide, some rights reserved (CC BY-NC), uploaded by Ben VanderWeide
- 97. (c) born1945, some rights reserved (CC BY)
- 98. (c) Zack Harris, some rights reserved (CC BY-NC), uploaded by Zack Harris
- 99. (c) Jorunn D. Newth, some rights reserved (CC BY-NC-SA)
- 100. no rights reserved, uploaded by askalotl
- 101. (c) Mick Talbot, some rights reserved (CC BY)
- 102. (c) Kristin Johnson, some rights reserved (CC BY-NC), uploaded by Kristin Johnson
- 103. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
- 104. (c) Damon Tighe, some rights reserved (CC BY-NC), uploaded by Damon Tighe
- 105. (c) Kaitlin MacLean, some rights reserved (CC BY-NC), uploaded by Kaitlin MacLean
- 106. (c) Steven Severinghaus, some rights reserved (CC BY-NC-SA)
- 107. (c) Bryant Olsen, some rights reserved (CC BY-NC)
- 108. (c) Tom Hilton, some rights reserved (CC BY), uploaded by Tom Hilton
- 109. (c) Matthieu Lienart, some rights reserved (CC BY-NC-SA)
- 110. (c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
- 111. (c) Jim Morefield, some rights reserved (CC BY), uploaded by Jim Morefield
- 112. (c) Lies Van Rompaey, some rights reserved (CC BY)
- 113. (c) Joseph D Kurtz, some rights reserved (CC BY-NC), uploaded by Joseph D Kurtz
- 114. (c) David Bygott, some rights reserved (CC BY-NC-SA)
- 115. (c) Ferran Turmo Gort, some rights reserved (CC BY-NC-SA)
- 116. (c) --Tico--, some rights reserved (CC BY-NC-ND)
- 117. (c) Anita, some rights reserved (CC BY-NC-SA)
- 118. (c) José MarÃa Escolano, some rights reserved (CC BY-NC-SA)
- 119. (c) Gernot HOCHMUELLER, some rights reserved (CC BY)
- 120. (c) Eve Fraser-Corp, some rights reserved (CC BY-NC)
- 121. (c) Carol Jacobs-Carre, some rights reserved (CC BY-NC-ND)
- 122. (c) Nick Beck, some rights reserved (CC BY-NC-SA)
- 123. (c) Biopix, some rights reserved (CC BY-NC)
- 124. (c) John Tann, some rights reserved (CC BY)
- 125. (c) Luigi Rignanese, some rights reserved (CC BY-NC)
- 126. (c) Pavel Daněk, some rights reserved (CC BY-SA)
- 127. (c) Andrew Simon, some rights reserved (CC BY-NC), uploaded by Andrew Simon
- 128. (c) "USDA FS RMRS Boise Aquatic Sciences Lab.", some rights reserved (CC BY-NC-SA)
- 129. (c) Andy Newman, some rights reserved (CC BY-NC), uploaded by Andy Newman
- 130. (c) James K. Lindsey, some rights reserved (CC BY-SA)
- 131. (c) Hans Ringsak, all rights reserved, uploaded by Hans Ringsak
- 132. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- 133. (c) harum.koh, some rights reserved (CC BY-SA), uploaded by harum.koh
- 134. (c) Harry Rose, some rights reserved (CC BY)
- 135. (c) Brian-Sean Early, some rights reserved (CC BY-NC), uploaded by Brian-Sean Early
- 136. (c) jacki-dee ('retro look' option please), some rights reserved (CC BY-NC-ND)
- 137. (c) Charlie Hohn, some rights reserved (CC BY), uploaded by Charlie Hohn
- 138. (c) Jason Miller, some rights reserved (CC BY-NC), uploaded by Jason Miller
- 139. (c) 2006 Luigi Rignanese, some rights reserved (CC BY-NC)
- 140. (c) Aaron Ellig, some rights reserved (CC BY-ND), uploaded by Aaron Ellig
- 141. (c) Bas Kers, some rights reserved (CC BY-NC-SA)
- 142. (c) sarahnwilson, some rights reserved (CC BY-NC), uploaded by sarahnwilson
- 143. (c) Hörður Kristinsson, some rights reserved (CC BY-NC)
- 144. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
- 145. (c) botanybee, some rights reserved (CC BY-NC)
- 146. (c) Bob O'Kennon, some rights reserved (CC BY-NC), uploaded by Bob O'Kennon
- 147. (c) Blake Weis, some rights reserved (CC BY-NC), uploaded by Blake Weis
- 148. (c) Fyn Kynd, some rights reserved (CC BY-SA), uploaded by Fyn Kynd
- 149. (c) Jason Eckberg, some rights reserved (CC BY-NC), uploaded by Jason Eckberg
- 150. (c) Gravitywave, some rights reserved (CC BY-NC-SA)
- 151. (c) 2012 Zoya Akulova, some rights reserved (CC BY-NC)
- 152. (c) Louis, some rights reserved (CC BY-SA)
- 153. (c) Ken-ichi Ueda, some rights reserved (CC BY)
- 154. (c) John Rusk, some rights reserved (CC BY)
- 155. (c) Roger Butterfield, some rights reserved (CC BY-NC-SA)
- 156. (c) Gertrud K., some rights reserved (CC BY-NC-SA)
- 157. (c) Will Freyman, some rights reserved (CC BY-NC), uploaded by Will Freyman
- 158. (c) dnydick, some rights reserved (CC BY-NC), uploaded by dnydick
- 159. (c) Anne Reeves, some rights reserved (CC BY-NC-ND)
- 160. (c) Brent Miller, some rights reserved (CC BY-NC-ND)
- 161. (c) Anita, some rights reserved (CC BY-NC)
- 162. (c) Kutushev Radik, some rights reserved (CC BY-NC), uploaded by Kutushev Radik
- 163. (c) Tony Rebelo, some rights reserved (CC BY-SA), uploaded by Tony Rebelo
- 164. (c) Bob Gutowski, some rights reserved (CC BY-NC-SA)
- 165. (c) Bastiaan, some rights reserved (CC BY-NC-ND)
- 166. (c) mdworsky, some rights reserved (CC BY-NC)
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