Three Dahlia species and seven garden cultivars compared through exact Wikimedia Commons photographs, with photographer credits and licences. 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:Dahlia coccinea (Asteraceae).jpg; Juan Carlos Fonseca Mata; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ADahlia_coccinea_%28Asteraceae%29.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 2. File:Dahlia imperialis1SHSU.jpg; Shu Suehiro; CC BY 3.0; https://creativecommons.org/licenses/by/3.0; https://commons.wikimedia.org/wiki/File%3ADahlia_imperialis1SHSU.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 3. File:Dahlia merckii 01.JPG; AfroBrazilian : Aleksandrs Balodis; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ADahlia_merckii_01.JPG; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 4. File:Dahlia 'Bishop of Llandaff' 1.jpg; Photograph by Mike Peel ( www.mikepeel.net ).; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ADahlia_%27Bishop_of_Llandaff%27_1.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 5. File:Dahlia 'Café au Lait' 2.jpg; Dwergenpaartje; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ADahlia_%27Caf%C3%A9_au_Lait%27_2.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 6. File:Dahlia 'David Howard' 2.jpg; Kelvinsong; CC BY 3.0; https://creativecommons.org/licenses/by/3.0; https://commons.wikimedia.org/wiki/File%3ADahlia_%27David_Howard%27_2.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 7. File:Dahlia, "Arabian Night" cultivar.jpg; Mark Twyning / Marktee1 at en.wikipedia; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File%3ADahlia%2C_%22Arabian_Night%22_cultivar.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 8. File:Dahlia - "Thomas Edison" cultivar.jpg; Mark Twyning / Marktee1 at en.wikipedia; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File%3ADahlia_-_%22Thomas_Edison%22_cultivar.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 9. File:Dahlia 'Kelvin Floodlight'.JPG; Cillas; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ADahlia_%27Kelvin_Floodlight%27.JPG; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence. 10. File:Dahlia 'Honka Rood' Dalia 2021-09-03 01.jpg; Agnieszka Kwiecień, Nova; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ADahlia_%27Honka_Rood%27_Dalia_2021-09-03_01.jpg; Inspected portrait crop and scaling; title and caption bars added. Photograph licensed under the stated source licence.