Ipomoea imperati |
Ipomoea tenuissima |
|
---|---|---|
beach morning-glory |
rockland morning-glory |
|
Habit | Perennials. | Annuals. |
Stems | repent, rooting at nodes and underground. |
twining. |
Leaf | blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous. |
blades usually narrowly hastate or sagittate, sometimes ovate, 15–30 × 7–20 mm, base cordate, hastate, or sagittate, lobes usually pointed, sometimes rounded, surfaces usually ± hairy, adaxial sometimes glabrate. |
Peduncles | glabrous. |
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 lance-oblong, lanceolate, or lance-ovate, 5–8 mm, chartaceous or coriaceous, margins ciliate, apex acuminate, mucronate; corolla lavender, pink, or pink-purple, throat darker inside, funnelform, 30–45 mm. |
2n | = 30. |
|
Ipomoea imperati |
Ipomoea tenuissima |
|
Phenology | Flowering year-round. | Flowering Aug–Sep. |
Habitat | Beaches, dunes. | Pine flatwoods. |
Elevation | 0–10 m. (0–0 ft.) | 0–30 m. (0–100 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 |
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.) |
After fires, Ipomoea tenuissima seeds germinate and seedlings thrive for about a year. The plants then disappear except in sites that remain open. (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 | |
Name authority | (Vahl) Grisebach: Cat. Pl. Cub., 203. (1866) | Choisy in A. P. de Candolle and A. L. P. P. de Candolle: Prodr. 9: 376. (1845) |
Web links |