Perennial climber to ± 3 m., scabrous; stem scabrescent.. Tendrils absent or up to 7 cm.. Leaf-blades unlobed, elliptic to oblong, 1.5–4.5 by 0.5– 1.5 cm., base and top subobtuse to acute, margin ± 1 mm. serrate-dentate; petiole up to 0.5 cm.. Stipules 1.5–4 mm. False stipules absent (sometimes small first leaves of serial shoot developed).. Inflorescences 1–2-flowered; peduncle up to 4 cm.; bracts 2–3 mm.. Flowers scabrous-hispid; stipe 8–12(–15) mm.. Hypanthium 2.5–3 mm. wide.. Sepals (6–)8–10 mm.. Petals 4–6 mm.. Outer corona-tube 2–2.5 mm.; threads 2.5–3 mm.. Disk ± 0.5 mm.. Inner corona cup-or funnel-shaped, ±1.5 mm.. Stamens 5; filaments 3–4 mm.; anthers 2–3 mm.. Ovary ±1.5 mm.; styles free, 3–4 mm.. Fruit (excluding the 1–2 mm. long gynophore) 1.2–2 cm., containing 1–5 seeds.. Seeds ± 7 mm.
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