| Taxonomic Comments | None 
 The genus Scleria, named as nutrushes, is a group of sedges notable for the white, often glossy, achenes (seeds) and tough, knotty, horizontal rhizomes (absent in S. verticillata, S. muehlenbergii, and S. reticularis).  Stems are 1-many per plant, terminated by inflorescences of 1-several spikelets, subtended by leafy bracts.  In some species there are also inflorescences produced from upper and middle stem leaf axils, these usually on long arching stalks.  A dissecting scope is necessary to examine the achene for shape, ornamentation (bumps, pits, ridges), and hairs. Just as important are features of the hypogonium, upon which the achene tightly sits: present or not, how many lobes, and ornamentation (bumps, sharp points, etc.).
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