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Section Heleoglochin
See list of 2 species in this section-
1a. Apical portion of sheath opposite the leaf blade pale and red-dotted on the hyaline surface; perigynia spreading, olive-brown to black, with a pale, depressed stripe on the abaxial surface, not covered by their subtending scales; inflorescence relatively congested, the lowest internode 3–7 (–10) mm long
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1b. Apical portion of sheath opposite the leaf blade strongly copper-colored and red- dotted on the hyaline surface; perigynia appressed, light brown, without a pale, depressed stripe, covered by their subtending scales; inflorescence more open, the lowest internode 7–26 (–33) mm long
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Each photo represents one species in this section.