Poaceae subfam. Ehrhartoideae
The Ehrhartoideae encompasses three tribes, one of which, the Oryzeae, is native to the Flora region; the Ehrharteae is represented by introduced species. The third tribe, Phyllorachideae C.E. Hubb., is native to Africa and Madagascar. It was included in the subfamily on the basis of its morphological similarity to the other two tribes. There are approximately 120 species in the Ehrhartoideae. They grow in forests, open hillsides, and aquatic habitats.
Molecular data provide strong support for the close relationship of the Oryzeae and Ehrharteae (Grass Phylogeny Working Group 2001). Morphologically, they are characterized by spikelets that have a distal unisexual or bisexual floret with up to two proximal sterile florets, and the frequent presence of six stamens in the staminate or bisexual florets.
Gibbs Russell, G.E., L. Watson, M. Koekemoer, L. Smook, N.P. Barker, H.M. Anderson, and M.J. Dallwitz. 1991. Grasses of Southern Africa (ed. O.A. Leistner). National Botanic Gardens, Botanical Research Institute, Pretoria, Republic of South Africa. 437 pp.
|1||Spikelets with 2 sterile florets below the functional floret, both well-developed, at least the upper sterile floret as long as or longer than the functional floret; glumes from 1/2 as long as the spikelets to exceeding the florets; culms not aerenchymatous; plants of dry to damp habitats||Ehrharteae|
|1||Spikelets with 0-2 sterile florets below the functional floret, when present, sterile florets 1/8 - 9/10 as long as the functional floret; glumes absent or highly reduced; culms aerenchymatous; plants of wet habitats||Oryzeae|
|Author||Grass Phylogeny Working Group +|
|Reference||gibbs1991a + and group2001a +|
|Source xml||https://firstname.lastname@example.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V24/V24 29.xml +|
|Taxon family||Poaceae +|
|Taxon name||Poaceae subfam. Ehrhartoideae +|
|Taxon parent||Poaceae +|
|Taxon rank||subfamily +|
|Volume||Volume 24 +|