Some older references may still include Hemerocallis in the lily family, Liliaceae.

Individual flowers open for one day. The scientific name for daylily is Hemerocallis, most recently considered to belong in the plant family Asphodelaceae.

Individual flowers open for one day.


Notice that the preferred spelling is “daylily” as one word. The scientific name of an organism consists of the genus name and the scientific name. Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta – Vascular plants Superdivision: Spermatophyta – Seed plants Division: Magnoliophyta – Flowering plants Class daylily: Plants of the genus Hemerocallis , family Hemerocallidaceae .
Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta – Vascular plants Superdivision: Spermatophyta – Seed plants Division: Magnoliophyta – Flowering plants Class Plant care and collection of Daylilies at Garden.org, with informative growing guides and 156,402 images of 92,502 varieties listed. Hemerocallis fulva is commonly called tawny daylily for the 5" diameter, tawny orange flowers.

Daylily Scientific Name This edible flower or herb is scientifically known as hemerocallis. Notice that the preferred spelling is “daylily” as one word.

The genus name is capitalized, and the whole name is italicized. This large species daylily has flower scapes rising up to 6' tall from a large clump of thick, arching, blade-like, bright green leaves.