Ipomoea imperati |
Ipomoea thurberi |
|
---|---|---|
beach morning-glory |
Thurber's morning-glory |
|
Habit | Perennials. | Perennials, root elongate, tuberous. |
Stems | repent, rooting at nodes and underground. |
trailing or twining. |
Leaf | blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous. |
blades ± sagittate, 10–50 × 20–65 mm overall, base sagittate, or blades palmatisect, lobes 5–7, lanceolate, linear, or oblong, surfaces sparsely strigose. |
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 lanceolate to lance-linear, 12–15 × 3–4 mm, ± herbaceous, base obscurely warty or not, apex acuminate, setaceous-caudate; corolla white, tube green, limb red, rose, drying purple, funnelform-salverform, 50–80 mm, limb 50–65 mm diam. |
2n | = 30. |
|
Ipomoea imperati |
Ipomoea thurberi |
|
Phenology | Flowering year-round. | Flowering Aug–Sep. |
Habitat | Beaches, dunes. | Oak woodlands, rocky sites. |
Elevation | 0–10 m. (0–0 ft.) | 1100–1600 m. (3600–5200 ft.) |
Distribution |
AL; FL; GA; LA; MS; NC; SC; TX; HI; Mexico; Central America; South America; West Indies [Introduced in Europe, Asia, Africa, Australia]
|
AZ; Mexico (Chihuahua, Sonora) |
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 | I. gentryi |
Name authority | (Vahl) Grisebach: Cat. Pl. Cub., 203. (1866) | A. Gray in A. Gray et al.: Syn. Fl. N. Amer. 2(1): 212. (1878) |
Web links |