Difference between revisions of "Ipomoea macrorhiza"
Fl. Bor.-Amer. 1: 141. 1803.
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|genus=Ipomoea | |genus=Ipomoea | ||
|species=Ipomoea macrorhiza | |species=Ipomoea macrorhiza | ||
Latest revision as of 13:15, 24 November 2024
Perennials, root relatively large, tuberlike. Stems trailing or twining. Leaf blades ovate, triangular-ovate, or 3-lobed, 50–150 × 50–150 mm, base cordate to sagittate or truncate, margins ± crenulate, surfaces: abaxial tomentulose, adaxial glabrous, minutely beaded along veinlets. Peduncles tomentulose. Flowers nocturnal; sepals oblong-elliptic, 16–18 mm, coriaceous, sericeous; corolla white, throat lavender to purple inside, salverform, 50–80 mm.
Phenology: Flowering Jun–Jul.
Habitat: Beaches, clearings, dunes.
Elevation: 0–40 m.
Distribution
Ala., Fla., Ga., Miss., N.C., S.C.
Discussion
Ipomoea macrorhiza has been confused with the Mexican and Central American I. jalapa (Linnaeus) Pursh; I. macrorhiza differs by having nocturnal, moth-pollinated flowers with white corollas versus matinal, bee-pollinated flowers with lavender corollas.
Selected References
None.