Operculina petaloidea

Operculina petaloidea (Choisy) Ooststr., Blumea 3: 369 (1939) (syn: Convolvulus crispatulus Wall. ; Ipomoea petaloidea Choisy ; Ipomoea petaloidea var. pauciflora C.B.Clarke ; Ipomoea xanthantha Kurz ; Merremia crispatula Prain ; Merremia petaloidea (Choisy) Burkill; Operculina petaloidea var. pauciflora (C.B.Clarke) Parmar);
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N. & Central India to Indo-China: Bangladesh, Cambodia, India, Myanmar, Thailand, Vietnam, West Himalaya as per POWO;
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140625PKD1: Id pls collected from Khurda on june 2025: Mixed thread: 1 correct image as above

Convolvulaceae ??

Flower appears to have fallen from some other plant.

Can it be Operculina petaloidea ? as per
https://indiaflora-ces.iisc.ac.in/FloraPeninsular/herbsheet.php?id=2910&cat=7
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:270801-1
https://botany.dnp.go.th/eflora/floragenus.html?factsheet=Operculina
https://botany.dnp.go.th/eflora/floraspecies.html?tdcode=04521
https://www.inaturalist.org/taxa/993895-Operculina-petaloidea
https://www.gbif.org/occurrence/gallery?taxon_key=7323873

It looks Camonea umbellata (Merremia umbellata) here it is
2 images.

I initially thought of it, but somehow did not pursue further.

Both are closely related as per keys from Flora of China:

16 (15)	Stems terete or striate, not winged; fruit a 4-valved capsule or shattering irregularly		12 Merremia
+	Stems (and often petioles, peduncles) winged; fruit with a thickened circumscissile lid that separates from ± papery and tardily shattering endocarp		14 Operculina

Yes, you may be right.

FOPI shows distribution of the following in Odisha.
https://indiaflora-ces.iisc.ac.in/FloraPeninsular/herbsheet.php?id=2905&cat=7

the attached one is Operculina petaloidea, pedicel and stem winged
1 image

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References:
POWO Catalogue of Life GBIF (High resolution specimens) Flora of Thailand Flora of Eastern India iNaturalist

Updated on June 21, 2025