Geographical distribution, Plant collectors, Plant history, Orchidaceae, Ethnobotany, and Botany, History of

Coniferae, Botany, History of, Uses, Nomenclature, Vernacular names, Taxonomy, Conservation, Economic botany, Geographical distribution, Habitats, Ecology, Descriptions, and Identification

Geographical distribution, Ethiopia, Sudan, South Sudan, Phytogeography, Botany, History of, Floras, Vegetation, Woodlands, Vegetation classification, and Woody plants