Semantic search
- Carex nelsonii (Elevation: 2900–3900 m)
- Carex nervina (Elevation: 1200–3000 m)
- Carex neurophora (Elevation: 1000–3200 m)
- Carex nigra (Elevation: 0–200 m)
- Carex nigricans (Elevation: 90–3400 m)
- Carex nigromarginata (Elevation: 10–800 m)
- Carex normalis (Elevation: 0–1600 m)
- Carex norvegica (Elevation: 0–1000 m)
- Carex nova (Elevation: 3000–3700 m)
- Carex novae-angliae (Elevation: 100–1000 m)
- Carex nudata (Elevation: 0–1500 m)
- Carex obispoensis (Elevation: elevations below 600 m)
- Carex obnupta (Elevation: 0–900 m)
- Carex obtusata (Elevation: 10–1400 m)
- Carex occidentalis (Elevation: 1200–3500 m)
- Carex oklahomensis (Elevation: 0–1500 m)
- Carex oligocarpa (Elevation: 40–800 m)
- Carex oligosperma (Elevation: 0–1200 m)
- Carex opaca (Elevation: 50–400 m)
- Carex oreocharis (Elevation: 2200–3300 m)
- Carex ormostachya (Elevation: 0–1000 m)
- Carex oronensis (Elevation: 30–400 m)
- Carex ouachitana (Elevation: 200–800 m)
- Carex ovalis (Elevation: 0–1100 m)
- Carex oxylepis
- Carex ozarkana (Elevation: 100–400 m)
- Carex pachystachya (Elevation: 0–3500 m)
- Carex paeninsulae (Elevation: 0–30 m)
- Carex paleacea (Elevation: 0–10 m)
- Carex pallescens (Elevation: 0–500 m)
- Carex panicea (Elevation: 0–20 m)
- Carex pansa (Elevation: 0–30 m)
- Carex parallela
- Carex parallela subsp. parallela (Elevation: 0–1100 m)
- Carex parryana (Elevation: 200–2500 m)
- Carex pauciflora (Elevation: 0–1500 m)
- Carex paysonis (Elevation: 2100–3500 m)
- Carex peckii (Elevation: 10–2000 m)
- Carex pedunculata (Elevation: 0–800 m)
- Carex pellita (Elevation: 0–2900 m)
- Carex pelocarpa (Elevation: 2700–3700 m)
- Carex pendula (Elevation: 0–20 m)
- Carex pensylvanica (Elevation: 150–1500 m)
- Carex perdentata (Elevation: 200–500 m)
- Carex perglobosa (Elevation: 3600–4000 m)
- Carex petasata (Elevation: 500 m to timberline)
- Carex petricosa
- Carex petricosa var. misandroides (Elevation: 0–300 m)
- Carex petricosa var. petricosa (Elevation: 100–2800 m)
- Carex phaeocephala (Elevation: 1200–4000 m)