Souroubea

Souroubea is a genus of flowering plants in the family Marcgraviaceae. These are climbing shrubs or lianas native to tropical regions of Central and South America, including the West Indies.

Characteristics:

• Habit: Souroubea species are typically woody climbers, often employing aerial roots for attachment to host trees.
• Leaves: The leaves are usually alternate, simple, and entire (smooth-edged).
• Inflorescence: The inflorescence is a raceme or umbel-like structure. A notable feature is the presence of modified bracts that are often brightly colored or nectar-producing, attracting pollinators. These bracts are sometimes referred to as "nectar leaves."
• Flowers: The flowers are small, often inconspicuous, and possess five petals and numerous stamens.
• Fruit: The fruit is a berry.

Ecology:

Souroubea species play a role in tropical ecosystems as climbers and provide food resources for various animals through their nectar and fruits. Their modified bracts are thought to be an adaptation to attract specific pollinators like hummingbirds or insects.

Taxonomy:

The genus Souroubea is part of the Marcgraviaceae family, which is characterized by its unique bracts and specialized pollination mechanisms. The exact number of species within the genus is subject to ongoing taxonomic revision.