Yellow Jessamine

Gelsemium is a genus of flowering plants in the family Gelsemiaceae, native to North America and Southeast Asia. The genus, commonly known as Jessamine, consists of three species of evergreen or semi-evergreen woody, climbing vines. The most well-known species is Gelsemium sempervirens, which is widely cultivated for its attractive, fragrant flowers and is the state flower of South Carolina. All parts of the plant are highly toxic and can be fatal if ingested. The key characteristics of the Gelsemium genus are best exemplified by Gelsemium sempervirens, or Carolina Jessamine. This vine is prized for its abundant, fragrant, trumpet-shaped yellow flowers that bloom in late winter and early spring. The glossy, dark green leaves are lance-shaped and grow in opposite pairs along the stem. The plant is a twining vine that can climb up to 20 feet or more, or it can be grown as a dense groundcover. The stems are wiry and reddish-brown, and the fruit is a flattened capsule containing winged seeds. Gelsemium has a history of medicinal use, although its high toxicity makes it a dangerous plant to use without expert guidance. Historically, it has been used to treat a variety of ailments, including neuralgia, migraines, and fevers. However, due to the presence of potent alkaloids such as gelsemine, which is structurally similar to strychnine, any use of this plant for medicinal purposes is strongly discouraged. Today, its primary use is as an ornamental plant, valued for its beauty and fragrance in gardens and landscapes. It is also a source of nectar for pollinators such as bees and butterflies, although the nectar can be toxic to honeybees.