Helenium, Taxa Only, Exact Match: 9 Treatments

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Helenium autumnale     Thornhill, Robert, Krings, Alexander, Lindbo, David & Stucky, Jon, 2014, Guide to the Vascular Flora of the Savannas and Flatwoods of Shaken Creek Preserve and Vicinity (Pender & Onslow Counties, North Carolina, U. S. A.), Biodiversity Data Journal 2, pp. 1099-1099 : 1099 1099
Helenium pinnatifidum     Thornhill, Robert, Krings, Alexander, Lindbo, David & Stucky, Jon, 2014, Guide to the Vascular Flora of the Savannas and Flatwoods of Shaken Creek Preserve and Vicinity (Pender & Onslow Counties, North Carolina, U. S. A.), Biodiversity Data Journal 2, pp. 1099-1099 : 1099 1099
Helenium autumnale     Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part H), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 557-585 : 563 563
Helenium pinnatifidum     Thornhill, Robert, Krings, Alexander, Lindbo, David & Stucky, Jon, 2014, Guide to the Vascular Flora of the Savannas and Flatwoods of Shaken Creek Preserve and Vicinity (Pender & Onslow Counties, North Carolina, U. S. A.), Biodiversity Data Journal 2, pp. 1099-1099 : 1099 1099
Inula helenium     Hess, Hans Ernst, Landolt, Elias & Hirzel, Rosmarie, 1976, Flora der Schweiz und angrenzender Gebiete. Band 3. Plumbaginaceae bis Compositae (2 nd edition): Unterfamilie _ tubuliflorae, Birkhaeuser Verlag : 525 525
Helenium autumnale     Thornhill, Robert, Krings, Alexander, Lindbo, David & Stucky, Jon, 2014, Guide to the Vascular Flora of the Savannas and Flatwoods of Shaken Creek Preserve and Vicinity (Pender & Onslow Counties, North Carolina, U. S. A.), Biodiversity Data Journal 2, pp. 1099-1099 : 1099 1099
Inula helenium     Konrad Lauber, Gerhart Wagner & Andreas Gygax, 2018, Flora Helvetica - Asteraceae, Flora Helvetica, Bern: Haupt Verlag, pp. 1074-1250 : 1116 1116
Inula helenium     Info Flora, 2021, Info Flora Schweiz - Asteraceae, https://www.infoflora.ch/de/flora/asteraceae.html (accessed 2023 - 10 - 20) : -1 -1
Inula helenium     Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part I), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 586-598 : 591 591