Webové stránky o kaktusech v přírodě:
www.atacamaphoto.com/atacama-flora/desert-flora-4.htm
http://www.terragalleria.com/parks/np.saguaro.html
http://www.www.atacamaphoto.com/bolivia/bolivia-1.htm
http://www.atompot.net/gallery.php?action=Bolivie2004&part=Sala
http://www.youtube.com/embed/_hwDdE0Gu4E
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