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Section Rostrales
See list of 2 species in this section-
1a. Widest leaf blades 1.6–3.5 (–4.2) mm wide; upper leaf sheaths and bract sheaths concave at the summit; staminate spikes 6–15 mm long; carpellate scales 33–66% as long as the perigynia, not terminated by an awn
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1b. Widest leaf blades 6–18 (–21) mm wide; upper leaf sheaths and bract sheaths convex at the summit; staminate spikes 12–40 mm long; carpellate scales mostly 66–100% as long as the perigynia (rarely surpassing the perigynia), usually prolonged into an awn
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Each photo represents one species in this section.