Sessea is a genus of 19 accepted species of shrubs, small trees and climbers belonging to the subfamily Cestroideae of the plant family Solanaceae.

[1] The genus commemorates Spanish botanist Martín Sessé y Lacasta, was described by Nicholas Edward Brown and was published in Florae Peruvianae, et Chilensis Prodromus 21,1794 by Hipólito Ruiz López and José Antonio Pavón Jiménez.

[2] Accepted species include:[3][4][5][6] Experiments conducted in Pindamonhangaba between 1963-65, demonstrated the toxicity of Sessea brasiliensis on cattle.

Symptoms of poisoning began approximately 12 hours after ingestion of the plant, consisting of apathy, anorexia, decreased intensity and number of rumen movements, muscle tremors, and unsteady gait.

[7] The study concluded that S. brasiliensis poisoning was very similar, or even identical, to that of Cestrum laevigatum; a species used to induce hallucinations by the Krahô tribe for spiritual purposes.