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  1. Tropical rainforest | Definition, Characteristics, Location, Climate ...

    3 days ago · Tropical rainforests, which worldwide make up one of Earth’s largest biomes (major life zones), are dominated by broad-leaved trees that form a dense upper canopy (layer of foliage) and …

  2. Tropical rainforest - Biodiversity, Ecosystems, Flora | Britannica

    Oct 22, 2025 · Tropical rainforests, which contain many different types of trees, seldom are dominated by a single species. A species can predominate, however, if particular soil conditions favor this …

  3. South America - Rainforest, Flora, Fauna | Britannica

    5 days ago · In the annually flooded plains known as várzeas, trees are higher and quite diversified; they include oeiranas (Alchornea castaneifolia), a euphorbia (i.e., characterized by a milky juice), and the …

  4. Rainforest | Definition, Plants, Map, & Facts | Britannica

    Tropical rainforests are found primarily in South and Central America, West and Central Africa, Indonesia, parts of Southeast Asia, and tropical Australia. The climate in these regions is one of …

  5. Cecropia | Amazon rainforest, medicinal uses, pollination | Britannica

    Tropical rainforests, which worldwide make up one of Earth’s largest biomes (major life zones), are dominated by broad-leaved trees that form a dense upper canopy (layer of foliage) and contain a …

  6. Buttress root | plant anatomy | Britannica

    Buttress roots stabilize the tree, especially in shallow saturated soils, thereby resisting toppling. They are common in certain tropical trees of wet lowland environments but, with few exceptions, such as…

  7. Meliaceae | Tropical Trees, Evergreen, Mahogany | Britannica

    Meliaceae, the mahogany family of flowering plants (order Sapindales), comprising 51 genera and about 575 species of trees and (rarely) shrubs, native to tropical and subtropical regions.

  8. Tropical rainforest - Flora, Fauna, Relationships | Britannica

    Oct 22, 2025 · Tropical rainforest - Flora, Fauna, Relationships: Some of the tallest trees and lianas, and the epiphytes they support, bear flowers and fruits at the top of the rainforest canopy, where the air …

  9. Savanna - Grasses, Trees, Shrubs | Britannica

    Dec 1, 2025 · Across large parts of the tropical American savannas, the most-common broad-leaved trees are Curatella, locustberries and maricao cimarrons (Byrsonima), and Bowdichia, their place …

  10. Cacao | Description, Cultivation, Pests, & Diseases | Britannica

    Cacao, tropical evergreen tree grown for its edible seeds. Native to lowland rainforests of South America, cacao is grown commercially in the New World tropics as well as western Africa and …