| http://www.w3.org/ns/prov#value | - In some dictionaries and other reference works, this plant may be referred to as a day lily, but the spelling was consolidated into a single word in 1923 upon the recommendation of the American Joint Committee on Horticultural Nomenclature, as reported by the publication Standardized Plant Names, 1923 edition, Preface, p. x and p. 199.
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