- Calamagrostis angustifolia
- Calamagrostis bolanderi, Bolanders reedgrass
- Calamagrostis breweri, Shorthair reedgrass
- Calamagrostis cainii, Cains reedgrass
- Calamagrostis californica
- Calamagrostis canadensis, Bluejoint
- Calamagrostis canescens, Purple Small-reed
- Calamagrostis chordorrhiza
- Calamagrostis coarctata, Arctic Reedgrass
- Calamagrostis crassiglumis
- Calamagrostis deschampsioides, Circumpolar reedgrass
- Calamagrostis epigeios, Chee reedgrass
- Calamagrostis epigejos, Wood Small-reed
- Calamagrostis expansa, Maui reedgrass
- Calamagrostis fernaldii
- Calamagrostis foliosa, Leafy reedgrass
- Calamagrostis hillebrandii, Hillegrands reedgrass
- Calamagrostis holmii, Holms reedgrass
| | - Calamagrostis nutkaensis, Pacific reedgrass
- Calamagrostis ophitidis, Serpentine reedgrass
- Calamagrostis perplexa, Wood reedgrass
- Calamagrostis pickeringii, Pickerings reedgrass
- Calamagrostis pittieri
- Calamagrostis poluninii
- Calamagrostis porteri, Porters reedgrass
- Calamagrostis purpurascens, Purple reedgrass
- Calamagrostis purpurea, Scandinavian Small-reed
- Calamagrostis rubescens, Pinegrass
- Calamagrostis scopulorum, Ditch reedgrass
- Calamagrostis scotica, Scottish Small-reed
- Calamagrostis scribneri
- Calamagrostis stricta, Narrow Small-reed
- Calamagrostis tweedyi, Tweedys reedgrass
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