| Cyperaceae | Carex fissa var. aristata | Hammock Sedge | Wet pine savannas, roadside banks and ditches. | Extreme se. SC (Jasper Co.), s. GA (Clinch County) (Carter, Baker, & Morris 2009; Sorrie 1998b) south to c. peninsular FL, west to FL Panhandle and s. MS (Bryson et al. 1996). | 
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| Cyperaceae | Carex fissa var. fissa | Western Hammock Sedge | Prairie depressions, eastwards introduced in disturbed areas, including roadside ditches, sediment control ponds, and old railroad stockyards (well-established). | S. IL, MO, se. KS, and OK south to AR, se. TX, and TAM. See Simmons, Strong, & Parrish (2008) for additional information about the VA occurrence, and Knapp et al. (2011) and Longbottom, Naczi, & Knapp (2016) about the MD and DE occurrences. McKenzie & Nelson (2022) discussed occurrences in MO. | 
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