Ten Calceolaria species compared through exact Wikimedia Commons photographs of slipper-shaped flowers. An editorial selection, not a scientific ranking. Original video contributions: CC BY-SA 4.0. Individual photographs retain the licences and credits listed in attribution; public-domain and CC0 photographs remain so. Photograph credits: 1. File:Calceolaria uniflora.JPG; Thomas Mathis; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File%3ACalceolaria_uniflora.JPG; Central vertical crop and resizing to the photograph region; title and caption bars added. 2. File:Calceolaria integrifolia - Flickr - Dick Culbert.jpg; Dick Culbert from Gibsons, B.C., Canada; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_integrifolia_-_Flickr_-_Dick_Culbert.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added. 3. File:Calceolaria biflora (Chile).jpg; Butterfly voyages Serge Ouachée; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_biflora_%28Chile%29.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added. 4. File:Calceolaria corymbosa 1.JPG; Ghislain118 http://www.fleurs-des-montagnes.net; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_corymbosa_1.JPG; Central vertical crop and resizing to the photograph region; title and caption bars added. 5. File:Calceolaria arachnoidea kz01.jpg; Krzysztof Ziarnek, Kenraiz; CC BY 4.0; https://creativecommons.org/licenses/by/4.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_arachnoidea_kz01.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added. 6. File:Calceolaria purpurea 241826159.jpg; Nicolás Lavandero; CC BY 4.0; https://creativecommons.org/licenses/by/4.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_purpurea_241826159.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added. 7. File:Calceolaria mexicana flower in Darjeeling 01.jpg; Pinakpani; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_mexicana_flower_in_Darjeeling_01.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added. 8. File:Calceolaria tripartita Costa Rica.jpg; Gabriele Kothe-Heinrich; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_tripartita_Costa_Rica.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added. 9. File:Calceolaria cana 001.jpg; pabloendemico; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File%3ACalceolaria_cana_001.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added. 10. File:Calceolaria tomentosa.jpg; Stickpen; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File%3ACalceolaria_tomentosa.jpg; Central vertical crop and resizing to the photograph region; title and caption bars added.