Jasminum oblongum N. L. Burman, Fl. Indica 6, t. 3, fig. 2. 1768; Dicerolepis paludosa Blume; Gymnanthera nitida R. Brown; G. paludosa (Blume) K. Schumann; Parechites bowringii Hance; Trachelospermum bowringii (Hance) Hemsley.

Lianas to 2 m. Branchlets tawny-brown, lenticellate, slightly pubescent. Petiole 5-10 mm; leaf blade oblong or elliptic, 3-5.5 × 1.5-2.5 cm, papery, glabrous, base rounded or broadly cuneate, apex rounded, apiculate. Cymes apparently axillary, subsessile, congested, ca. 2 cm wide, to 7-flowered, glabrous. Pedicel 5-10 mm. Sepals ovate, ca. 2 × 1 mm, basal glands 5-10. Corolla yellow-green; tube 6-9 mm; lobes ovate, ca. 7 × 5 mm, obtuse. Corona lobes ovate, apex apiculate. Pollen carriers short cylindric, erect. Ovaries glabrous. Follicles dark brown, 8-12 cm × 5-6 mm. Seeds tawny-brown, oblong, ca. 7 × 2 mm; coma ca. 2 cm. Fl. Jun-Sep, fr. Sep-Jan.

Mangroves. S Guangdong, Hainan [Cambodia, Indonesia, Malaysia, New Guinea, Philippines, Thailand, Vietnam; Australia].