Yellow jessamine (Gelsemium sempervirens) is the South Carolina State Flower. Yellow jessamine bloom on a high-climbing, woody vine. Yellow jessamine plant is a landscape plant.Yellow jessamine flowers are clusters of bright yellow, fragrant, tubular blossoms, with flared petals. Yellow jessamine bloom from December to March.

Yellow Jessamine is called by several names like Carolina jessamine, poor man's rope, or yellow jasmine and as The Pride of Augusta, Evening Trumpetflower, Gelber Jasmin, Jasmin sauvage, Sariyasemin . Yellow Jessamine's characteristic feature is its sweet, prevailing scent through the wintery woods. Yellow Jessamine is common in the coastal plains and Piedmont regions from Virginia to South Florida and west to Arkansas and Texas.

Source: https://www.theflowerexpert.com/content/aboutflowers/stateflowers/south-carolina-state-flowers