Chasmanthieae

{{Short description|Tribe of grasses}}

{{Automatic taxobox

|image = Chasmanthium latifolium Boyle Park.jpg

|image_caption = Woodoats (Chasmanthium latifolium)

|display_parents = 2

|taxon = Chasmanthieae

|authority = W.V. Br. & B.N. Smith ex Sánchez-Ken & L.G. Clark (2010)

|subdivision_ranks = Genera

|subdivision =

• Bromuniola
• Chasmanthium

}}

Chasmanthieae is a small tribe of grasses in the subfamily Panicoideae. It belongs to a basal lineage within the subfamily and has only seven species in two genera, Bromuniola with one species in Africa and Chasmanthium from North America.{{cite journal |last1=Soreng |first1=Robert J. |last2=Peterson |first2=Paul M. |last3=Romschenko |first3=Konstantin |last4=Davidse |first4=Gerrit |last5=Zuloaga |first5=Fernando O. |last6=Judziewicz |first6=Emmet J. |last7=Filgueiras |first7=Tarciso S. |last8=Davis |first8=Jerrold I. |last9=Morrone |first9=Osvaldo |title=A worldwide phylogenetic classification of the Poaceae (Gramineae) |journal=Journal of Systematics and Evolution |volume=53 |issue=2 |year=2015 |pages=117–137 |issn=1674-4918 |doi=10.1111/jse.12150|hdl=11336/25248 |hdl-access=free }} {{open access}} They all use the C₃ photosynthetic pathway.{{cite journal|last1=Osborne|first1=Colin P.|last2=Salomaa|first2=Anna|last3=Kluyver|first3=Thomas A.|last4=Visser|first4=Vernon|last5=Kellogg|first5=Elizabeth A.|last6=Morrone|first6=Osvaldo|last7=Vorontsova|first7=Maria S.|author7-link=Maria Vorontsova (botanist)|last8=Clayton|first8=W. Derek|last9=Simpson|first9=David A.|title=A global database of C₄ photosynthesis in grasses|journal=New Phytologist|volume=204|issue=3|year=2014|pages=441–446|issn=0028-646X|doi=10.1111/nph.12942|pmid=25046685|hdl=10019.1/122719|hdl-access=free}} {{open access}}