Hemerocallis fulva

(Linnaeus) Linnaeus

Sp. Pl. ed. 2, 1: 462. 1762.

Common names: Orange daylily tawny daylily hémérocalle fauve lis d’un jour
Basionym: Hemerocallis lilioasphodelus var. fulvus Linnaeus Sp. Pl. 1: 324. 1753
Treatment appears in FNA Volume 26. Treatment on page 220. Mentioned on page 219.

Plants 7–15 dm; main roots fleshy. Leaf blade yellowish green, 7–10 dm × (1–)2.5–3 cm. Scape branched, 10–20-flowered, taller than foliage. Flowers diurnal, not fragrant; perianth tube, widely funnelform, 2–3 cm; tepals yellow basally with darker tawny orange zones and stripes, veins reticulate; outer tepals 7–8 × 1.8–2.2 cm, margins smooth; inner tepals 7.5–8.5 cm × 3–3.5 cm, margins wavy; filaments 4.5–6.5 cm; anthers 5–7 mm; ovary 8–10 mm; style white to pale orange, 9–10 cm; pedicel 3–6 mm. Capsules not or rarely developing. Seeds rarely produced. 2n = 33.

Phenology: Flowering late spring–early summer.
Habitat: Roadsides, waste places, homesteads, open forests, stream banks
Elevation: 0–1000 m


Introduced; N.B., N.S., Ont., P.E.I., Que., Ala., Ark., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., e Asia (China, Japan), naturalized Eurasia, expected elsewhere.


Following an earlier European introduction from Asia, Hemerocallis fulva was brought to North America in the seventeenth century. This commonly cultivated daylily, the wild type, is distinguished as cultivar ‘Europa’ Stout and is a self-sterile triploid producing no seed. Essentially, it is a large, complex clone. Plants persist from cultivation or have arisen from root or rhizome fragments, which are capable of plant regeneration. Cultivar ‘Kwanso’ Regel, another ancient garden selection, persists in many areas along with the wild type and has fully doubled flowers. In eastern Asia, both diploids and triploids occur in the H. fulva complex and have been the basis for extensive breeding and tetraploid cultivar selection (A. B. Stout 1934).

Selected References


Lower Taxa

... more about "Hemerocallis fulva"
Gerald B. Straley† +  and Frederick H. Utech +
(Linnaeus) Linnaeus +
Hemerocallis lilioasphodelus var. fulvus +
Orange daylily +, tawny daylily +, hémérocalle fauve +  and lis d’un jour +
N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, e Asia (China +, Japan) +, naturalized Eurasia +  and expected elsewhere. +
0–1000 m +
Roadsides, waste places, homesteads, open forests, stream banks +
Flowering late spring–early summer. +
Sp. Pl. ed. +
Introduced +  and Illustrated +
Hemerocallis fulva +
Hemerocallis +
species +