Adenia cardiophylla (Mast.) Engl., Bot. Jahrb. Syst. 14: 376 (1891) (syn: Adenia heterophylla Vidal ; Modecca cardiophylla Mast. ; Modecca parviflora Blanco ; Passiflora parviflora Blanco );
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E. Himalaya to China (Yunnan) and Indo-China: Andaman Is., Assam, Bangladesh, Cambodia, China South-Central, East Himalaya, Laos, Myanmar, Nicobar Is., Thailand, Vietnam as per POWO;
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Need id: 4 high res. images.
Please id this plant
Location: Aizawl, Mizoram
Habit: climber
Habitat: Forest
Adenia cardiophylla (Mast.) Engl.
I think you are right, …, as per GBIF specimens (one, two, three).
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References:
POWO GBIF (High resolution specimens) specimens (one, two, three) Flora of peninsular India India Flora Online Assam Biodiversity Portal iNaturalist