Clusters of yellow Allamanda flowers with reddish throats bloom among green leaves and woody stems

Allamanda cathartica var. hendersonii (Golden Trumpet Vine)

Native from northern South America to northern Bolivia, this evergreen climbing shrub has woody stems that can reach about 20 feet over supporting vegetation. Large yellow trumpet-shaped flowers bloom freely throughout the year in warm climates and attract bees and butterflies. Its prickly capsules split open to release winged seeds. It is propagated by stem cuttings. It has naturalized in Florida and is invasive in northern Queensland, Australia. All parts are poisonous if eaten, and its milky sap can irritate skin. Photographed in Colombia and Ecuador.

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A yellow Allamanda flower with an orange throat blooms beside a bronze-colored bud

Yellow Allamanda flowers with reddish throat lines bloom along a leafy branch

A yellow Allamanda flower faces sideways against dark foliage

Yellow Allamanda flowers covered in water droplets cluster among leaves and buds

A yellow Allamanda flower blooms against a blue sky

Two yellow Allamanda flowers have white markings near their throats

Peach-colored Allamanda flowers with orange throats bloom among green leaves

A yellow Allamanda flower blooms beside pointed reddish buds

Two yellow Allamanda flowers covered in water droplets bloom beside reddish buds

A yellow Allamanda flower covered in water droplets has red lines inside its throat

A yellow Allamanda flower with red throat lines blooms beside elongated bronze-colored buds

A sunlit yellow Allamanda flower has broad spreading lobes and an orange throat

A sprawling Allamanda shrub covered in yellow flowers grows in front of palms