Ten Spiraea species compared through exact Wikimedia Commons photographs of flower heads and foliage. 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:Spiraea Japonica Close-up.jpg; TheNoob1337; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ASpiraea_Japonica_Close-up.jpg; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 2. File:Spiraea prunifolia var. simpliciflora 2014년 4월 9일 (13768093393).jpg; 영철 이 from 광주 광역시; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0; https://commons.wikimedia.org/wiki/File%3ASpiraea_prunifolia_var._simpliciflora_2014%EB%85%84_4%EC%9B%94_9%EC%9D%BC_%2813768093393%29.jpg; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 3. File:Spiraea thunbergii E.jpg; Wouter Hagens; Public domain; ; https://commons.wikimedia.org/wiki/File%3ASpiraea_thunbergii_E.jpg; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 4. File:Buquê-de-noiva, planta.jpg; Bageense; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3ABuqu%C3%AA-de-noiva%2C_planta.jpg; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 5. File:Spiraea nipponica 2.JPG; Qwert1234; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File%3ASpiraea_nipponica_2.JPG; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 6. File:Spiraea salicifolia - Rosaceae - National Botanic Garden of Belgium 01.jpg; M0tty; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File%3ASpiraea_salicifolia_-_Rosaceae_-_National_Botanic_Garden_of_Belgium_01.jpg; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 7. File:Spiraea douglasii 01.jpg; Joe Mabel; CC BY 4.0; https://creativecommons.org/licenses/by/4.0; https://commons.wikimedia.org/wiki/File%3ASpiraea_douglasii_01.jpg; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 8. File:Spiraea.alba.-.lindsey.jpg; James K. Lindsey; CC BY-SA 2.5; https://creativecommons.org/licenses/by-sa/2.5; https://commons.wikimedia.org/wiki/File%3ASpiraea.alba.-.lindsey.jpg; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 9. File:Spiraea betulifolia 1.JPG; Qwert1234; Public domain; ; https://commons.wikimedia.org/wiki/File%3ASpiraea_betulifolia_1.JPG; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence. 10. File:Rosaceae - Spyraea chamaedryfolia.JPG; Hectonichus; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File%3ARosaceae_-_Spyraea_chamaedryfolia.JPG; Whole-image fit and scaling; title and caption bars added. Photograph licensed under the stated source licence.