|
|
| Ordre : Solanales | | Famille : Convolvulaceae | | Nom latin : Ipomea alba L. | | Synonymes : Calonyction aculeatum (L.) House, Ipomoea bona-nox L. | | Noms vernaculaires : belle de nuit, fleur de lune | | Vernacular names : tropical white morning-glory, tropical white morningglory | Description :
Description EOL:
Herbs annual or perennial, twining, usually glabrous, rarely puberulent. Stems to 10 m, terete, smooth or with soft prickles, sap milky. Petiole 5-20 cm; leaf blade ovate to ± circular in outline, 10-20 X 5-16 cm, base cordate, margin entire, angular to 3-lobed, apex acuminate, mucronulate. Inflorescences helicoid cymes, rarely dichasial, 1- to several flowered; peduncle stout, terete, 1-24 cm; bracts early deciduous, small. Pedicel 7-15 cm, clavate distally, enlarged in fruit. Flowers nocturnal, fragrant. Sepals elliptic to ovate, ± leathery, glabrous; outer 3 sepals 5-12 mm, apex with a stout spreading awn 4-9 mm; inner 2 sepals 7-15 mm, mucronate. Corolla white, with greenish bands, salverform; tube 7-12 cm, ca. 5 mm in diam.; limb 7-12 cm in diam., shallowly 5-undulate. Stamens exserted; filaments inserted in apical 1/2 of corolla tube, glabrous; anthers sagittate basally. Pistil exserted; ovary narrowly conical, glabrous. Stigma 2-lobed. Capsule ovoid, 2.5-3 cm, apiculate. Seeds white, brown, or black, ca. 10 7-8 mm, glabrous. 2n = 28*, 30*, 38*. (Source: EOL) |
| Epoque de floraison : août à octobre
Strate végétale : Herbacée
Propriétés : Ornementale
Origine : Argentine, Bahamas, Belize, Bolivie, Brésil, Colombie, Costa Rica, Cuba, États-Unis, Guatemala, Guyana, Guyane française, Haïti, Honduras, Mexique, Nicaragua, Panama, République dominicaine, Suriname, Venezuela
|
Liens externes
| Commentaires et appréciations | |
|
|
Ipomée_'Know_lion's_black
