Semantic search
- Carex sect. Longicaules
- Carex sect. Lupulinae
- Carex sect. Macrocephalae
- Carex sect. Mitratae
- Carex sect. Multiflorae
- Carex sect. Nardinae
- Carex sect. Obtusatae
- Carex sect. Ovales
- Carex sect. Paludosae
- Carex sect. Paniceae
- Carex sect. Phacocystis
- Carex sect. Phaestoglochin
- Carex sect. Phyllostachyae
- Carex sect. Physoglochin
- Carex sect. Pictae
- Carex sect. Porocystis
- Carex sect. Racemosae
- Carex sect. Rhynchocystis
- Carex sect. Rostrales
- Carex sect. Rupestres
- Carex sect. Schiedeanae
- Carex sect. Scirpinae
- Carex sect. Scitae
- Carex sect. Shortianae
- Carex sect. Spirostachyae
- Carex sect. Squarrosae
- Carex sect. Stellulatae
- Carex sect. Thuringiaca
- Carex sect. Triquetrae
- Carex sect. Vesicariae
- Carex sect. Vulpinae
- Carex senta (Elevation: 0–3000 m)
- Carex seorsa (Elevation: 0–300 m)
- Carex serpenticola (Elevation: 60–1200 m)
- Carex serratodens (Elevation: 100–1400 m)
- Carex sheldonii (Elevation: 1200–1900 m)
- Carex shinnersii (Elevation: 100–300 m)
- Carex shortiana (Elevation: 10–500 m)
- Carex siccata (Elevation: 0–3600 m)
- Carex silicea (Elevation: 0 m)
- Carex simulata (Elevation: 600–3100 m)
- Carex socialis (Elevation: 50–500 m)
- Carex sparganioides (Elevation: 50–300 m)
- Carex specifica (Elevation: 1200–3500 m)
- Carex spectabilis (Elevation: 300–3500 m)
- Carex specuicola (Elevation: 1100–2000 m)
- Carex spicata (Elevation: 0–300 m)
- Carex spissa (Elevation: lower than 600 m in Calif.)
- Carex sprengelii
- Carex squarrosa (Elevation: 0–1000 m)