Subject
- Specific Epithet: glaucescens 3
- Specific Epithet: grandifrons 3
- Specific Epithet: hutchinsiae 3
- Specific Epithet: hyalinus 3
- Specific Epithet: lanuginosum 3
- Specific Epithet: longifolium 3
- Specific Epithet: longisetum 3
- Specific Epithet: luridum 3
- Specific Epithet: minus 3
- Specific Epithet: muhlenbergianum 3
- Specific Epithet: neo-mexicana 3
- Specific Epithet: nitens 3
- Specific Epithet: paludosum 3
- Specific Epithet: porteri 3
- Specific Epithet: rhynchostegium 3
- Specific Epithet: sordidum 3
- Specific Epithet: splendens 3
- Specific Epithet: taxirameum 3
- Specific Epithet: tenellum 3
- Specific Epithet: triquetrus 3