Ipomoea imperati
Ipomoea triloba
beach morning-glory
little bell morning glory, littlebell
repent, rooting at nodes and underground.
usually twining, sometimes trailing.
blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous.
blades orbiculate, broadly ovate, or 3–7-lobed, 20–80 × 20–70 mm overall, base cordate, basal lobes angular, lobed, or rounded, surfaces glabrous or sparsely pilose.
glabrous.
glabrous, distally verruculose.
sepals lance-oblong, 10–15 mm, outers shorter than inners, ± coriaceous, apex acute to obtuse, abaxial surface glabrous;
corolla white, throat usually yellow, sometimes purplish inside, funnelform, 25–50 mm.
sepals narrowly elliptic-oblong, lanceolate, or oblong, 6–7 mm, chartaceous or coriaceous, margins ciliate, apex acute or obtuse, mucronulate-caudate, surface glabrous or abaxial sparsely hairy;
corolla lavender, funnelform, 10–20 mm.
= 30.
= 30, 60.
Ipomoea imperati
Ipomoea triloba
Ipomoea imperati was collected once in Pennsylvania (on ballast in 1865). The names I. littoralis (Linnaeus) Boissier 1875, not Blume 1826, and I. stolonifera (Cirillo) J. F. Gmelin are illegitimate; both have been misapplied to plants of I. imperati.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Ipomoea triloba seeds are sometimes a contaminant in rice and other seeds.
Ipomoea trifida (Kunth) G. Don (Convolvulus trifidus Kunth) was incorrectly ascribed to Florida by J. K. Small (1933) on the basis of an unusual and incorrectly identified specimen of I. triloba.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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