Ipomoea imperati |
Ipomoea batatas |
|
---|---|---|
beach morning-glory |
camote, sweet potato, wild sweet potato |
|
Habit | Perennials. | Perennials, root relatively large, tuberlike. |
Stems | repent, rooting at nodes and underground. |
± trailing, rarely twining. |
Leaf | blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous. |
blades cordate, broadly ovate, or 5–7-lobed, 50–100+ × 40–100 mm overall, base cordate, surfaces glabrous or hairy. |
Peduncles | glabrous. |
glabrous or hairy, hairs appressed. |
Flowers | 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 lanceolate to oblong, 8–15 mm, chartaceous; corolla usually lavender, pink, or purplish, sometimes white, throat usually darker inside, funnelform, (30–)40–70 mm. |
Seeds | glabrous. |
|
2n | = 30. |
= 60, 84, 90. |
Ipomoea imperati |
Ipomoea batatas |
|
Phenology | Flowering year-round. | Flowering year-round. |
Habitat | Beaches, dunes. | Abandoned plantings, thickets. |
Elevation | 0–10 m. (0–0 ft.) | 0–200+ m. (0–700+ ft.) |
Distribution |
AL; FL; GA; LA; MS; NC; SC; TX; HI; Mexico; Central America; South America; West Indies [Introduced in Europe, Asia, Africa, Australia]
|
FL; KS; LA; MS; NC; NY; PA; SC; TX; UT; VA; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia, Africa]
|
Discussion | 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.) |
Reports of Ipomoea batatas from northern parts of the flora area appear to be based on ephemerals. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Ipomoea | Convolvulaceae > Ipomoea |
Sibling taxa | ||
Synonyms | Convolvulus imperati | Convolvulus batatas |
Name authority | (Vahl) Grisebach: Cat. Pl. Cub., 203. (1866) | (Linnaeus) Lamarck in J. Lamarck and J. Poiret: Tabl. Encycl. 1: 465. (1793) |
Web links |