Hemerocallis lilioasphodelus is a perennial monocotyledon herb, colonial from tubers, ffleshy roots.
Leaves alternate, basal, strap-like with prominent midrib.
Flowers lemon yellow, fragrant, otherwise same as H. hemerocallis.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Rarely escapes from cultivation but occasionally found in overgrown horticultural sites. Many hybrids and cultivars. Hybrids of Hemerocallis not invasive.