Hemerocallis lilioasphodelus
Sp. Pl. 1: 324. 1753.
Plants 5–10 dm; roots enlarged, fibrous. Leaf-blade dark green, 5–6.5 dm × 0.8–1.5 cm. Scape closely branched distally, 8–12-flowered, taller than foliage. Flowers often remaining open into night, fragrance strongly sweet, lemony; perianth-tube shortly funnelform, 1.5–2.5 cm; tepals uniformly pale to bright lemon yellow, veins parallel; outer tepals 5–7 × 1–1.3 cm, margins smooth; inner tepals 5–7.5 × 1–2 cm, margins smooth; filaments 3–3.5 cm; anthers 2–3 mm; ovary 5–6 mm; style white to yellow, 7–8 cm; pedicel 2–4 mm. Capsules fully developed, oblongelliptic, (2–) 3–4 × (1–) 1.5–2 cm. Seeds black, round or angular by compression, 3–5 mm, shiny. 2n = 22.
Phenology: Flowering summer.
Habitat: Roadsides, waste places, open woods
Elevation: 0–500 m
Distribution
Introduced; N.B., Ont., Que., Ark., Conn., Ill., Ind., Ky., Maine, Md., Mass., Mich., Minn., Miss., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., Tex., Vt., Va., W.Va., Wis., e Asia, naturalized Europe
Discussion
Hemerocallis lilioasphodelus was an early introduction to Europe, where it naturalized, and then to North America (W. J. Dress 1955; Hu S. Y. 1968; W. B. Zomlefer 1998). This diploid species escapes only sporadically, unlike the more aggressive H. fulva, with true naturalization frequently questioned (W. B. Zomlefer 1998).
Selected References
None.
Lower Taxa
"broad" is not a number."dm" is not declared as a valid unit of measurement for this property."thicker" is not a number.