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Key to families | Table of families and genera
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|Family: Poaceae (Gramineae)||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Perennial herb, cespitose, occasionally shortly rhizomed. Stem: erect to nodding, up to 1 m. Leaf: sheath glabrous or hairy, with tuft of hairs at tip; ligule a rim of hairs; blades persistent or breaking apart at ligules, flat or inrolled, glabrous or hairy. Inflorescence: generally raceme-like or few-branched, panicle-like. Spikelet: laterally compressed; glumes subequal, veins 3--13; florets 3--10, bisexual, breaking apart above glumes and between florets; callus sharp or +- blunt with lateral tufts of stiff hairs; lemma ovate to lanceolate with 2 complete or incomplete transverse rows of tufts of hairs occasionally reduced to marginal tufts, veins 5--9, 2-lobed, lobes often bristle-tipped, central awn from between lobes generally with twisted column. Fruit: obovate to elliptic.
Species In Genus: 45--50 species: temperate South America, New Zealand, Australia, New Guinea. Etymology: (Greek: wrinkled seed) Note: Florets cross-pollinated and anthers long, or self-pollinated and anthers short. Rytidosperma biannulare (Zotov) Connor & Edgar and Rytidosperma richardsonii (Cashmore) Connor & Edgar occasionally escaped from research plots, not known to have persisted.
eFlora Treatment Author: H.E. Connor & S.J. Darbyshire
Jepson Online Interchange
Key to RytidospermaPrevious taxon: Puccinellia simplex
Next taxon: Rytidosperma caespitosum
Citation for this treatment: H.E. Connor & S.J. Darbyshire 2017. Rytidosperma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=80250, accessed on February 25, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 25, 2017.