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Key to Carex, [26u] Section 15 Limosae: section Limosae (including Scitae)
| 1 Pistillate scales 2.0-3.8 mm wide, wider than the perigynia |
| 1 Pistillate scales 1.2-2.0 mm wide, narrower than the perigynia. |
..2 Proximal bracts shorter than inflorescences; terminal spikes 20-50 mm long; pistillate scales shorter than perigynia |
| ..2 Proximal bracts equaling or exceeding inflorescences; terminal spikes 7-20 mm long; pistillate scales exceeding perigynia |