海南同心结 hai nan tong xin jie

Periploca alboflavescens Dennstedt, Schlüssel Hortus Malab. 12, 23, 35. 1818; Echites laevigata Moon; Heligme spiralis (Wallich ex G. Don) Thwaites; Parsonsia helicandra Hooker & Arnott; P. howii Tsiang; P. laevigata (Moon) Alston; P. spiralis Wallich ex G. Don.

Lianas woody, to 10 m, glabrous except for inflorescences. Branches pale gray. Petiole 2-4 cm; leaf blade ovate or subelliptic, 4-12 X 3-7.5 cm, base cuneate to shallowly cordate; lateral veins 5-7 pairs. Cymes 8-15 X 8-11 cm; peduncle 3-9 cm. Sepals ca. 2 mm, glands broadly triangular, membranous. Corolla white or greenish, tube ca. 5 mm, limb 1-2 cm wide, lobes ca. 6 mm. Anthers ca. 3.5 0.6 mm, inserted at middle of corolla tube. Ovary as long as or slightly shorter than disc, glabrous. Follicles 2, linear-cylindric, parallel, 7-16 X 1-2 cm. Seeds oblong 1.5-1.8 cm X ca. 2 mm, coma 2-4.5 cm. Fl. Apr-Oct, fr. Sep-Dec.

Mixed montane woods; 200-500 m. Fujian, Guangdong, Hainan, Taiwan [Cambodia, India, Indonesia, Japan (Ryukyu Islands), Laos, Malaysia, Myanmar, Philippines, Sri Lanka, Thailand, Vietnam].