Helenium helenium • helenium autumnale · · · Info · Definitions · Characters · · Helenium · · Text Latin · · Script 8 · · Length 4 · · Syllables Definitions · · · (noun) genus of American herbs with flowers having yellow rays: sneezeweeds. Synonyms: genus Helenium. · · Noun Definition 1 Characters · · H latin capital letter h U+0048 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E u latin small letter u U+0075