11. Ipomoea muricata (Linnaeus) Jacquin, Pl. Hort. Schoenbr. 3: 40. 1798.
[I W]
Lilac-bell
Convolvulus muricatus Linnaeus, Mant. Pl. 1: 44. 1767
Annuals. Stems trailing or twining, ± warty or smooth. Leaf blades usually orbiculate to ovate, sometimes cordate or 3–5-lobed, 70–180 × 70–160 mm, base cordate, surfaces glabrous. Peduncles glabrous. Flowers nocturnal; sepals oblong to ovate, 6–8 mm, chartaceous to coriaceous, apex acute, outers each with ± corniform appendage 4–6 mm; corolla white, turning lavender in morning, salverform, limb sometimes ± campanulate, 30–75 mm. Fruits 18–20 mm. 2n = 30.
Flowering Nov. Disturbed sites; 0–80 m; introduced; Ala., Ark., Fla., Ga., La., Miss., Tex.; Mexico; introduced also in South America.
Ipomoea muricata has been spread as a contaminant in soybean seeds (C. R. Gunn 1970).
The name Ipomoea turbinata Lagasca is illegitimate and has been misapplied to plants of I. muricata (G. W. Staples et al. 2006).
