Belongs within: Panicoideae.
The Paspalinae are a clade of grasses bearing unbranched inflorescences or inflorescences with unbranched branches, the spikelets being borne unilaterally on the branches (Kellogg 2015). The majority of species belong to the genus Paspalum in which spikelets have the lower glume reduced or absent (Gardner 1952).
Paspalinae [Reimarochloinae]K15
| i. s.: ‘Panicum’ venezuelaeK15
|--Echinolaena Desv. 1813K15
|--Ocellochloa Zuloaga & Morrone 2009K15
|--Renvoizea Zuloaga & Morrone 2008K15
|--Streptostachys Desv. 1810K15
|--Anthaenantiopsis Mez ex Pilg. 1931K15
| `--A. rojasianaK15
|--Aakia Grande 2014K15
| `--A. tuerckheimiiK15
|--Osvaldoa Grande 2014K15
| `--O. validaK15
|--Gerritea Zuloaga, Morrone & Killeen 1993K15
| `--G. pseudopetiolataK15
|--Hopia Zuloaga & Morrone 2007K15
| `--H. obtusaK15 [=Panicum obtusumK15; incl. P. culicinumB78]
|--Ichnanthus Beauv. 1812K15
| |--I. australiensis (Domin) Hughes 1923 [=Panicum australiense; incl. P. pauciflorum var. fastigiatum]G52
| |--I. majusculus (Muell.) Hughes 1923G52
| |--I. muelleri Hughes 1923G52
| `--I. pallens Munro 1861 [=Panicum pallens Sw. 1788]S06
|--+--Acostia Swallen 1968K15
| | `--A. gracilisK15
| `--Axonopus Beauv. 1812 (see below for synonymy)K15
| |--A. affinisH93
| |--A. compressus [=Anastrophus compressus, Milium compressum]G52
| |--A. fissifoliusLK14
| |--A. marginatusS00
| `--A. suffultusK15
`--Paspalum L. 1759 [incl. Reimarochloa Hitchc. 1909, Spheneria Kuhlm. 1922, Thrasya Kunth 1816, Thrasyopsis Parodi 1946]K15
|--P. acuminatum Raddi 1823S06
|--P. ciliatifoliumV72
| |--P. c. var. ciliatifoliumV72
| |--P. c. var. muhlenbergiiV72
| `--P. c. var. stramineumV72
|--P. commersonii Lam. 1791 [=P. scrobiculatum var. commersonii; incl. P. orbiculare, P. polystachyum]G52
|--P. conjugatum Berg. 1772S06 [incl. P. ciliatumS06, P. sieberianumB78, P. tenueS06]
|--P. digitaria Poir. 1816CA26, S06 (see below for synonymy)
|--P. dilatatumB00
| | i. s.: P. dilatatum f. paucispicaS06
| |--P. d. var. dilatatumS06
| `--P. d. var. parviflorum [incl. P. larranagai Arechavaleta 1896]S06
|--P. distichum [incl. P. littorale]B78
|--P. fasciculatumK10
|--P. filifoliumLBM08
|--P. fimbriatumJ87
|--P. hieronymi Hackel 1901S06
|--P. humboldtianumS06
| |--P. h. var. humboldtianumS06
| `--P. h. var. stuckertiiS06
|--P. intermediumRJ11
|--P. malacophyllumS06
| |--P. m. var. malacophyllumS06
| `--P. m. var. longipilumS06
|--P. minutiflorum [incl. P. chinense]B78
|--P. monstachyumM83
|--P. notatumRJ11
|--P. paniculatumB00
|--P. plicatulumS06
| |--P. p. f. plicatulumS06
| `--P. p. f. macraS06
|--P. quadrifariumRJ11
| |--P. q. var. quadrifariumS06
| `--P. q. var. elongatumS06
|--P. repensF11
|--P. scoparium (see below for synonymy)S06
|--P. scrobiculatum [incl. P. metabolon, P. pubescens]B78
|--P. simplexK15
|--P. urvilleiRJ11
|--P. vaginatumG52 [=Panicum vaginatum Greene & Godr. 1856S06]
|--P. virgatumS06
| |--P. v. f. virgatumS06
| `--P. v. f. oligostachya Hackel in Stuckert 1906S06
`--P. wittstiniiB00
Axonopus Beauv. 1812 [incl. Baptorhachis Clayton & Renvoize 1986, Centrochloa Swallen 1935, Ophiochloa Filg., Davidse & Zuloaga 1993]K15
Paspalum digitaria Poir. 1816CA26, S06 [=Pas. distichum var. digitaria Hackel in Stuckert 1906S06; incl. Digitaria paspaloides Michx. 1803S06, Pas. paspaloidesM94]
Paspalum scoparium [incl. Paspalum leptostachyum, Paspalum polydactylum, Paspalus pressus, Panicum suffultum, Paspalum suffultum]S06
*Type species of generic name indicated
References
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[M94] May, B. M. 1994. An introduction to the immature stages of Australian Curculionoidea. In: Zimmerman, E. C. Australian Weevils (Coleoptera: Curculionoidea) vol. 2. Brentidae, Eurhynchidae, Apionidae and a chapter on immature stages by Brenda May pp. 365–728. CSIRO Australia.
[M83] Myers, R. L. 1983. Site susceptibility to invasion by the exotic tree Melaleuca quinquenervia in southern Florida. Journal of Applied Ecology 20: 645–658.
[RJ11] Rising, J. D., A. Jaramillo, J. L. Copete, P. G. Ryan & S. C. Madge. 2011. Family Emberizidae (buntings and New World sparrows). In: Hoyo, J. del, A. Elliott & D. A. Christie (eds) Handbook of the Birds of the World vol. 16. Tanagers to New World Blackbirds pp. 428–683. Lynx Edicions: Barcelona.
[S00] Siddiqi, M. R. 2000. Tylenchida: Parasites of plants and insects 2nd ed. CABI Publishing: Wallingford (UK).
[S06] Stuckert, T. 1906. Segunda contribución al conocimiento de las gramináceas Argentinas. Anales del Museo Nacional de Buenos Aires, serie 3, 6: 409–555.
[V72] Voss, E. G. 1972. Michigan Flora. Part I. Gymnosperms and Monocots. Cranbrook Institute of Science and University of Michigan Herbarium.