Ten Helenium species compared through flower heads and foliage in 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:Common Sneezeweed (Helenium autumnale) - Flickr - wackybadger.jpg; Joshua Mayer from Madison, WI, USA; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0; https://commons.wikimedia.org/wiki/File%3ACommon_Sneezeweed_%28Helenium_autumnale%29_-_Flickr_-_wackybadger.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved. 2. File:Helenium amarum 1120128.jpg; James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org; CC BY 3.0; https://creativecommons.org/licenses/by/3.0; https://commons.wikimedia.org/wiki/File%3AHelenium_amarum_1120128.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved. 3. File:Helenium bigelovii Bigelow sneezeweed.jpg; Dcrjsr; CC BY 3.0; https://creativecommons.org/licenses/by/3.0; https://commons.wikimedia.org/wiki/File%3AHelenium_bigelovii_Bigelow_sneezeweed.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved. 4. File:J20160707-0144—Helenium bolanderi —RPBG—DxO (35744344025).jpg; John Rusk from Berkeley, CA, United States of America; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File%3AJ20160707-0144%E2%80%94Helenium_bolanderi_%E2%80%94RPBG%E2%80%94DxO_%2835744344025%29.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved. 5. File:Helenium flexuosum flower.jpg; HoosierMan1816; Public domain; ; https://commons.wikimedia.org/wiki/File%3AHelenium_flexuosum_flower.jpg; Complete source photograph contained in portrait layout with labels; both flower heads preserved. 6. File:Helenium puberulum.jpg; Ruff tuff cream puff; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File%3AHelenium_puberulum.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved. 7. File:Helenium pinnatifidum kz01.jpg; Krzysztof Ziarnek, Kenraiz; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3AHelenium_pinnatifidum_kz01.jpg; Source photo cropped to (180,0,780,720), contained in portrait layout without cutting the principal flower; labels added. 8. File:Helenium virginicum, Virginia, US imported from iNaturalist photo 232651211.jpg; (c) Bruce Slater, some rights reserved (CC BY); CC BY 4.0; https://creativecommons.org/licenses/by/4.0; https://commons.wikimedia.org/wiki/File%3AHelenium_virginicum%2C_Virginia%2C_US_imported_from_iNaturalist_photo_232651211.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved. 9. File:Helenium aromaticum Cephalophora aromatica BotGardBln07122011A.jpg; User:BotBln; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File%3AHelenium_aromaticum_Cephalophora_aromatica_BotGardBln07122011A.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved. 10. File:Helenium mexicanum 01.jpg; Juan Carlos Fonseca Mata; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File%3AHelenium_mexicanum_01.jpg; Centered portrait crop, scaling and title/caption bars added; principal subject preserved.