J Syst Evol ›› 2022, Vol. 60 ›› Issue (3): 476-521.DOI: 10.1111/jse.12847

• Research Articles • Previous Articles     Next Articles

A worldwide phylogenetic classification of the Poaceae (Gramineae) III: An update

Robert J. Soreng1, Paul M. Peterson1*, Fernando O. Zuloaga2, Konstantin Romaschenko1, Lynn G. Clark3, Jordan K. Teisher4,6, Lynn J. Gillespie5, Patricia Barberá6, Cassiano A. D. Welker7, Elizabeth A. Kellogg8, De‐Zhu Li9, and Gerrit Davidse6   

  1. 1 Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington 20013‐7012 DC, USA
    2 Instituto de Botánica Darwinion (CONICET‐ANCEFN), Labardén 200, Casilla de Correo 22, San Isidro B1642HYD Buenos Aires, Argentina
    3 Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames 50011 Iowa, USA
    4 Department of Botany, Academy of Natural Sciences, 1900 Benjamin Franklin Parkway, Philadelphia 19103 Pennsylvania, USA
    5 Botany Section, Research and Collections, Canadian Museum of Nature, Ottawa K1P 6P4 ON, Canada
    6 Missouri Botanical Garden, P.O. Box 299, St. Louis 63166‐0299 MO, USA
    7 Instituto de Biologia, Rua Ceará s/n, Universidade Federal de Uberlândia, Uberlândia CEP 38400‐902 MG, Brazil
    8 Donald Danforth Plant Science Center, 975 North Warson Road, St Louis 63132 MO, USA
    9 Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201 Yunnan, China

    *Author for correspondence.
    E‐mail: peterson@si.edu.
  • Received:2021-07-16 Accepted:2022-03-11 Published:2022-05-01


We present an updated worldwide phylogenetic classification of Poaceae with 11 783 species in 12 subfamilies, 7 supertribes, 54 tribes, 5 super subtribes, 109 subtribes, and 789 accepted genera. The subfamilies (in descending order based on the number of species) are Pooideae with 4126 species in 219 genera, 15 tribes, and 34 subtribes; Panicoideae with 3325 species in 242 genera, 14 tribes, and 24 subtribes; Bambusoideae with 1698 species in 136 genera, 3 tribes, and 19 subtribes; Chloridoideae with 1603 species in 121 genera, 5 tribes, and 30 subtribes; Aristidoideae with 367 species in three genera and one tribe; Danthonioideae with 292 species in 19 genera and 1 tribe; Micrairoideae with 192 species in nine genera and three tribes; Oryzoideae with 117 species in 19 genera, 4 tribes, and 2 subtribes; Arundinoideae with 36 species in 14 genera and 3 tribes; Pharoideae with 12 species in three genera and one tribe; Puelioideae with 11 species in two genera and two tribes; and the Anomochlooideae with four species in two genera and two tribes. Two new tribes and 22 new or resurrected subtribes are recognized. Forty-five new (28) and resurrected (17) genera are accepted, and 24 previously accepted genera are placed in synonymy. We also provide an updated list of all accepted genera including common synonyms, genus authors, number of species in each accepted genus, and subfamily affiliation. We propose Locajonoa, a new name and rank with a new combination, L. coerulescens. The following seven new combinations are made in Lorenzochloa: L. bomanii, L. henrardiana, L. mucronata, L. obtusa, L. orurensis, L. rigidiseta, and L. venusta.

Key words: C3, C4, classification, DNA, grasses, subfamily, subtribe, systematics, taxonomy, tribe