Gelsemium sempervirens

Common Names: Carolina Jessamine, Poor Man's Rope, Evening Trumpet-flower, Yellow Jessamine

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Gelsemium is distinguished from other genera in the Loganiaceae family by its yellow corollas (it is also the only vine genus in the family) habit - perennial, twining, high-climbing, woody vine with evergreen leaves
corollas funnelform opposite leaves - what is the leaf shape?
leaves opposite, and with entire margins - solitary, short-pedicelled flowers are axial leaves contain alkaloids, which can be fatal if eaten
sympetalous corolla each flower has five stamens which are fused to the corolla at their bases