Ipomoea imperati |
Ipomoea alba |
|
---|---|---|
beach morning-glory |
moon flower, tropical white morning-glory |
|
Habit | Perennials. | Perennials. |
Stems | repent, rooting at nodes and underground. |
twining, usually prickly, sometimes rooting at nodes. |
Leaf | blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous. |
blades broadly ovate to triangular or 3–5-lobed, 50–150 × 50–150 mm, base cordate, surfaces usually glabrous, rarely hairy. |
Peduncles | glabrous. |
glabrous. |
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. |
nocturnal; sepals ovate, 7–15 mm, ± coriaceous, apex acute, outers each with midrib extending as ± corniform appendage; corolla white, throat green-banded inside, salverform, 70–150 mm. |
Fruits | 20–30 mm. |
|
2n | = 30. |
= 30. |
Ipomoea imperati |
Ipomoea alba |
|
Phenology | Flowering year-round. | Flowering Sep–May. |
Habitat | Beaches, dunes. | Forest margins, swamps, moist sites. |
Elevation | 0–10 m. (0–0 ft.) | 0–100 m. (0–300 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; LA; SC; TX; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia]
|
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.) |
|
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Ipomoea | Convolvulaceae > Ipomoea |
Sibling taxa | ||
Synonyms | Convolvulus imperati | Calonyction aculeatum, Convolvulus aculeatus |
Name authority | (Vahl) Grisebach: Cat. Pl. Cub., 203. (1866) | Linnaeus: Sp. Pl. 1: 161. (1753) |
Web links |