Swamp Yellow Jasmine
(Swamp Jessamine - Rankin's Trumpet Flower)
Gelsemium rankinii
Logania Family

Plant is a climbing perennial vine. Preferred habitat is swamps, flood plains and dense woods. Distribution is throughout the Escambia region.

Leaves are opposite; consisting of one part; evergreen; older leaves nearly oval and flat; new growth leaves are lance-like; stalked; sharp pointed; no teeth and no lobes. Leaf base is wedge-shaped to rounded.

Flowers are in the leaf axil; solitary; bisexual in nature; symmetrical in form; five sepals. Corolla is five-lobed; nearly wheel-shaped at the end of a flaring tube. Color is bright yellow; five stamens and odorless. Flowering occurs in late winter and early spring.

Fruit is a small capsule.

The common variety is called Yellow Jasmine (G. sempervirens), which also has evergreen leaves that are leathery in texture; smooth, entire and lance-like; flowers are fragrant. Look for it on fence rows, woods, thickets and disturbed sites throughout the Escambia area. Also known as Yellow Jasmine or Carolina Jasmine (in error). Flowering season is December to May.

While the common variety is widespread, the Swamp Yellow Jasmine has been located in scattered locations along the Escambia region. The flower of the swamp variety is identical to the Yellow Jasmine; the primary difference is the Swamp Jasmine has no odor and the leaf is larger.

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