软枝黄蝉 Allamanda cathartica

by Jun

  • Scientific Name: Allamanda cathartica L.
  • Ref: Mant. Pl. 2:214. 1771
  • Synonyms: Allamanda aubletii Pohl; A. chelsonii K.Koch; A. grandiflora (Aubl.) Lam.; A. latifolia C.Presl; A. linnaei Pohl; A. wardleyana Lebas; Echites verticillatus Sessé & Moc.; Orelia grandiflora Aubl.
  • English Common Name: golden trumpet vine, common trumpetvine, yellow allamanda
  • Chinese Common Name: 软枝黄蝉 ruǎnzhī huángchán
  • Japanese Common Name: アリアケカズラ [有明葛] ariakekazura
  • Family: Apocynaceae
  • Genus: Allamanda
  • Distribution: Cultivated for medicine. Fujian, Guangdong, Guangxi, Hainan, Taiwan [native to South America]
  • Photo: 06/21/2009, South China Botanical Garden, Guangdong
Shrubs trailing, to 4 m, with white latex. Stems glabrous. Leaves opposite or in whorls of 3-5; petiole ca. 5 mm; leaf blade obovate, narrowly obovate, or oblong, 6-15 X 4-5 cm, glabrous or villous along veins on abaxial surface, lateral veins flattened. Peduncle short. Flowers 7-14 cm. Corolla yellow; tube 4-8 cm, funnelform, cylindric in proximal half, campanulate in distal half, limb 9-14 cm in diam.; lobes obovate-truncate to orbicular. Capsules subglobose, 3-7 X 3-5 cm, with spines to 1 cm. Seeds compressed, winged or with a membranous margin. Fl. spring-summer. 2n = 18. (Flora of China)
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