Stephania wightii (Arn.) Dunn, J.S.Gamble, Fl. Madras: 30 (1915) (syn: Clypea wightii Arn. ex Wight);
Kerala, Tamil Nadu as per India Biodiversity Portal;

Slender climbers or vines. Stems slender, striate, ridged, glabrous. Leaves simple, peltate, broadly ovate or ovate triangular to deltoid, 3-8 x 2-6 cm across, base shallow truncate, margin lobed, apex acute or obtuse, chartaceous, membranous, dark green, glabrous above, paler glaucous beneath, basal veins 9-10, impressed above and prominent beneath, petiole slender, about 4-13 cm long. Inflorescence axillary, extra axillary, capitate cymes, penduncles about 1-3 cm long. Flowers unisexual, subsessile, greenish yellow. Male inflorescence in axillary, capitate cymes, male flowers, sepals 6, in 2 series, obovate, inflexed, greenish yellow or yellow, petals obovate or oblong, apex obtuse, glabrous, about 0.5 mm long, stamens 6, connate, synandrium peltate, about 0.5 mm long, anthers transversely dehiscing. Female inflorescence axillary, capitate cymes, peduncles 1-3 cm long, flowers yellow, sepals 3-5, imbricate, ultimate umbels often head-like, carpels 1, globose or ovoid, style short, stigma 3-6 cleft, ovary ovoid. Fruits drupes, obovoid or subglobose, slightly compressed, shining, glabrous, about 5-9 x 4-7 mm across, endocarp bony, slightly compressed, transversely grooved and ridged, style scar basal, cotyledons slender, oblong.
Open forests, altitude about 500-750 m.
(Attributions: Ganeshaiah, K. N., UAS, Bangalore, India. Kailash, B. R., UAS & ATREE, Bangalore, India. Indian Bioresource Information Network (IBIN), Department of Biotechnology, New Delhi, India as per India Biodiversity Portal)

321 ID wild climber: 24 high res. images.
Please ID wild climber,
Location: near Vannappuram, Thodupuzha, Idukki Dist.,Kerala PIN:685607
Altitude: 1500fsl
Flower date: 02.05.2022, 12.20 pm
Habitat: wild, wet/moisture, shaded rocky misty hill
Plant habit: climbing, branches, weak yellow patched flexible old stem upto 03 inches base diameter, green cylindrical smooth young stem, single tuber globoid 80% unearthed, perennial
Height: 03 meters
Leaves: alternate, heart-shaped, size upto: 10×9 cm
Flower: axillary racemose, circular compressed, clustered,  inflorescence diameter: 08 mm, greenish yellow, fragrant
Camera: CANON EOS1500D +rr

Tuber diameter upto 20cm rough bark.  Sharing more images

Please check Stephania glabra (Roxb.) Miers ! Does this sp. have distribution in Kerala ?
Otherwise it may be some other Stephania !

Yes, it is Stephania sp., dear …, thank you very much for ID my plant. I don’t know it is S. glabra. Here it is very rare, but some growing only in misty hill places,

To me looks different from images at
I think it appears close to Stephania wightii as per POWO specimenGBIFKerala PlantsFRLHT

Yes, it is Stephania wightii, dear …, thank you very much for ID my plant,




POWO  specimen  Catalogue of Life  GBIF  Kerala Plants  FRLHT  Flora of peninsular India  India Biodiversity Portal