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Key to Carex, [26a] Section 1a Vulpinae: section Vulpinae
........5 Perigynia cordate or truncate at base, distended; perigynium veins 15 abaxially, 7 adaxially.
..........6 Perigynia (5-) avg. 5.4 (-6) mm long, the beak > 3 mm long; larger leaves mostly 8-17 mm wide; perigynium scales cuspidate to short-awned; [mostly of the Coastal Plain and lower Piedmont]
..........6 Perigynia (4-) avg. 4.7 (-5) mm long, the beak < 2.5 mm long; larger leaves mostly 4-10 mm wide; perigynium scales acuminate to cuspidate; [widespread in our area]