Paspaleae | |
---|---|
Knotgrass ( Paspalum distichum) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Poales |
Family: | Poaceae |
Clade: | PACMAD clade |
Subfamily: | Panicoideae |
Supertribe: | Andropogonodae |
Tribe: |
Paspaleae J. Presl (1830) |
Genera | |
39, see text | |
Synonyms [1] | |
|
Paspaleae is a tribe of the Panicoideae subfamily 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]
Subdivisions: [1]
Paspaleae | |
---|---|
Knotgrass ( Paspalum distichum) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Poales |
Family: | Poaceae |
Clade: | PACMAD clade |
Subfamily: | Panicoideae |
Supertribe: | Andropogonodae |
Tribe: |
Paspaleae J. Presl (1830) |
Genera | |
39, see text | |
Synonyms [1] | |
|
Paspaleae is a tribe of the Panicoideae subfamily 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]
Subdivisions: [1]