Paspaleae is a
tribe of the
Panicoideaesubfamily in the grasses (
Poaceae), native mainly to the
tropical and
subtropical Americas but with a number of species introduced to other regions. It includes roughly 680 species in 39 genera.[2] Species in this tribe use either of the
C3 or
C4 photosynthetic pathways.[3]
The genera of Paspaleae used to be included in the
Paniceae but were assigned to a new tribe following
molecular phylogenetic analyses in 2012. The Paspaleae have an ancestral number of
chromosomes (
monoploid number) of x = 10, unlike the Paniceae sensu stricto with x = 9, and are more closely related to the tribes
Andropogoneae and
Arundinelleae.[4] The tribe is subdivided into three subtribes, with one genus, Reynaudia, unplaced (incertae sedis) and probably
basal to the other genera.[2] The genus Lecomtella is sometimes included but a study suggested this genus was a distinct clade and best treated as separate tribe, Lecomtelleae.[5]
^Morrone, Osvaldo; Aagesen, Lone; Scataglini, Maria A.; Salariato, Diego L.; Denham, Silvia S.; Chemisquy, Maria A.; Sede, Silvana M.; Giussani, Liliana M.; Kellogg, Elizabeth A.; Zuloaga, Fernando O. (2012). "Phylogeny of the Paniceae (Poaceae: Panicoideae): integrating plastid DNA sequences and morphology into a new classification". Cladistics. 28 (4): 333–356.
doi:
10.1111/j.1096-0031.2011.00384.x.
ISSN0748-3007.