Botanical name: Ceropegia longifolia Family: Apocynaceae (Oleander family)
Synonyms: Ceropegia angustifolia, Ceropegia lanceolata, Ceropegia borii
Longleaf Ceropegia is a twinning herb up to 3.5 m, sparsely hairy along 1 or 2 sides. Leaf-stalks are about 1.2 cm, narrowly winged, hairy. Leaves are lanceshaped, 5-12 cm long, 1.2-3 cm broad, glaucous below, covered with prostrate velvety hairs above, base rounded or wedge-shaped, tip pointed to long-pointed, lateral veins 6 or 7 pairs. Flowers are borne in umbel-like, 4-8-flowered clusters, carried on stalks 0.9-2.7 cm long. Flower-stalks are 1-1.5 cm. Sepals are linear, about 4 mm, hairless. Flowers are purplish, 2.2-3.6 cm, basal inflation 4.5-6.5 mm wide, tube 1.6-3.2 mm wide, expanding to 4.5-8.5 mm wide at base of lobes. Lobes are oblong, 1-1.3 cm, pale at base, terminal 5-6 mm purple, puberulent. Outer corona lobes divided into pairs of linear teeth; inner corona lobes erect, linear. Longleaf Ceropegia is found in the Himalayas, from Himachal Pradesh to Sikkim and China, at altitudes of 1000-2100 m.
Identification credit: Krishan Lal
The flower labeled Longleaf Ceropegia is ...