Semantic search
- Carex annectens (Elevation: 0–1500 m)
- Carex anthoxanthea (Elevation: 10–1000 m)
- Carex aperta (Elevation: 0–900 m)
- Carex appalachica (Elevation: 100–1000 m)
- Carex aquatilis
- Carex aquatilis var. aquatilis (Elevation: 0–3000 m)
- Carex aquatilis var. dives (Elevation: 0–900 m)
- Carex aquatilis var. minor (Elevation: 0–600 m)
- Carex aquatilis var. substricta (Elevation: 0–1000 m)
- Carex arapahoensis (Elevation: 3400–4000 m)
- Carex arcta (Elevation: 0–2000 m)
- Carex arctata
- Carex arctiformis (Elevation: 0–50 m)
- Carex arenaria
- Carex argyrantha (Elevation: 0–700+ m)
- Carex arkansana (Elevation: 100–500 m)
- Carex assiniboinensis
- Carex atherodes (Elevation: 50–2800 m)
- Carex athrostachya (Elevation: 100–4000 m)
- Carex atlantica
- Carex atlantica subsp. atlantica (Elevation: 0–1300 m)
- Carex atlantica subsp. capillacea (Elevation: 0–300 m)
- Carex atrata (Elevation: 10–700 m)
- Carex atratiformis (Elevation: 10–1500 m)
- Carex atrofusca (Elevation: 10–300 m)
- Carex atrosquama (Elevation: 300–3600 m)
- Carex aurea (Elevation: 0–3000 m)
- Carex aureolensis (Elevation: 0–500 m)
- Carex austrina (Elevation: 100–500 m)
- Carex austrocaroliniana (Elevation: 100–800 m)
- Carex backii (Elevation: 200–2100 m)
- Carex baileyi (Elevation: 200–1200 m)
- Carex baltzellii (Elevation: 0–100 m)
- Carex barbarae (Elevation: 0–1000 m)
- Carex barrattii (Elevation: 0–500 m)
- Carex basiantha (Elevation: 50–1000 m)
- Carex bebbii (Elevation: 0–2100 m)
- Carex bella (Elevation: 2800–3900 m)
- Carex bicknellii (Elevation: 50–400 m)
- Carex bicolor (Elevation: 0–500 m)
- Carex bigelowii
- Carex bigelowii subsp. bigelowii (Elevation: 0–2000 m)
- Carex bigelowii subsp. lugens (Elevation: 0–1500 m)
- Carex biltmoreana (Elevation: 850–1600 m)
- Carex blanda (Elevation: 0–1000 m)
- Carex bolanderi (Elevation: 30–2500 m)
- Carex bonanzensis (Elevation: 50–900 m)
- Carex brainerdii (Elevation: 600–2800 m)
- Carex brevicaulis (Elevation: 0–90 m)
- Carex brevior (Elevation: 0–2700 m)