Gelsemium sempervirens (USA)

Gelsemium sempervirens (L.) J. St.-Hil., Expos. Fam. Nat. 1: 338 1805. (syn: Bignonia sempervirens L.; Gelsemium lucidum Poir.; Gelsemium nitidum Michx.; Jeffersonia sempervirens (L.) Brickell);  

USA (Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Texas, Virginia), Guatemala, Mexico (Chiapas, Guerrero, Hidalgo, Jalisco, Michoacan, Nayarit, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tabasco, Tamaulipas, Veracruz), Honduras, Australia (I) (New South Wales (I), Queensland (I)) as per Catalogue of Life;


This delicate climber was seen at the Atlanta Botanical Garden on the 19th of Oct,18.
Flowers and buds look like miniature Allamanda, but the leaves are different.
A reply I got from their email indicates Winter Jasmine, Jasminum nudiflorum.
But to me it looks different, not from Jasmine family.
Experts kindly help in finding the correct id.
Could be Apocynaceae or Bignoniaceae. Not too sure.

This could be Gelsemium sempervirens of Gelsemiaceae.
Commonly called Carolina yellow jasmine.

Thanks for suggesting the id. Does look like it.
Allamanda
Thanks for the suggested id. Initially I thought of Allamanda too.
But ... suggested Gelsemium sempervirens of Gelsemiaceae which looks closer.


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