1.2-Tribe Andropogoneae - Sorghum tribe + Overview The Andropogoneae, sometimes called the sorghum tribe, are a large tribe of grasses (family Poaceae) with roughly 1,200 species in 90 genera, mainly distributed in tropical and subtropical areas. They include such important crops as maize (corn), sugarcane, and sorghum. All species in this tribe use C4 carbon fixation, which makes them competitive under warm, high-light conditions. Andropogoneae is classified in supertribe Andropogonodae together with its sister groupArundinelleae. Subdivisions include 12 subtribes, but the position of several genera within them is still unresolved (incertae sedis). Hybridisation was probably important in the evolution of the Andropogoneae, and the tribe's systematics is still not completely resolved. Synonyms Sacchareae Dumort. (1824) Coiceae Nakai (1943) Euchlaeneae Nakai (1943) Imperateae Godr. & Gren. (1855) Maydeae Dumort. (1824, nom. illeg.) Ophiureae Dumort. (1824) Rottboellieae Kunth (1829) Sacchareae Rchb. ex Horan. (1847, as Saccharinae) Tripsaceae C.E. Hubb. ex Nakai (1943) Zeeae Rchb. (1828, unranked) Zeeae Nakai (1943)
2- Taxonomy of the Tribe Andropogoneae - Sorghum tribe
The tribe Andropogoneae has 12 subtribes, with 84 genera and 1,200 species: 2.1- Subtribe Arthraxoninae [1 genus] Genus 1- Genus Arthraxon 2.2- Subtribe Tripsacinae [2 genera] Genera: 1- Genus Tripsacum 2- Genus Zea (maize or corn and teosinte) 2.3- Subtribe Chionachninae [4 genera] Genera: 1- Genus Chionachne 2- Genus Polytoca 3- Genus Sclerachne 4- Genus Trilobachne 2.4- Subtribe Coicinae [1 genus] Genus: 1- Genus Coix.