Annuals. Stems twining. Leaf blades cordate-ovate, deltate-ovate, ovate, or 3(–5)-lobed, 30–80 × 20–70 mm, base ± cor­date, basal lobes rounded or pointed, surfaces glabrous or sparsely hairy. Peduncles gla­brous, sometimes muricate. Flowers: sepals elliptic-oblong, lanceolate, or lance-ovate, (8–)11–14 mm, chartaceous or coriaceous, margins ciliate, apex acuminate, surfaces glabrous; corolla usually white, limb sometimes pink tinged, funnelform, 15–20(–25) mm. Fruits 10–13 mm diam. 2n = 30.

Phenology: Flowering Apr–Oct.
Habitat: Disturbed sites, ditches, fields.
Elevation: 0–300 m.

Distribution

• Generated Map
• Legacy Map

Ala., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mass., Miss., Mo., N.J., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va.

Discussion

Plants of Ipomoea lacunosa are sometimes confused with plants of I. × leucantha, which are derived from hybridization between I. lacunosa and I. cordatotriloba (D. F. Austin and W. E. Abel 1981). Seeds of Ipomoea lacunosa are 5–6 mm and seeds of I. × leucantha are 3.2–4 mm.

Reports of Ipomoea lacunosa for Ontario, California, and New York are apparently based on waifs.

Selected References

None.

Lower Taxa

None.