| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CACAT | Calamagrostis canadensis (Michx.) Beauv. var. typica Stebbins | Calamagrostis canadensis var. canadensis | Poaceae
|
| CACA4 | Calamagrostis canadensis (Michx.) Beauv. | bluejoint | Poaceae
|
| CACH18 | Calamagrostis chordorrhiza Porsild | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CACI | Calamagrostis cinnoides W. Bart. nom. super. | Calamagrostis coarctata | Poaceae
|
| CACO71 | Calamagrostis coarctata (Torr.) Eat. | arctic reedgrass | Poaceae
|
| CACR | Calamagrostis crassiglumis Thurb. | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CADE2 | Calamagrostis densa Vasey | Calamagrostis koelerioides | Poaceae
|
| CADE3 | Calamagrostis deschampsioides Trin. | circumpolar reedgrass | Poaceae
|
| CAEPG | Calamagrostis epigeios (L.) Roth ssp. glomerata (Boiss. & Buhse) Tzvelev | Calamagrostis epigeios var. georgica | Poaceae
|
| CAEPE | Calamagrostis epigeios (L.) Roth var. epigeios | chee reedgrass | Poaceae
|
| CAEPG2 | Calamagrostis epigeios (L.) Roth var. georgica (K. Koch) Ledeb. | chee reedgrass | Poaceae
|
| CAEP | Calamagrostis epigeios (L.) Roth | chee reedgrass | Poaceae
|
| CAEXR | Calamagrostis expansa (Munro ex Hbd.) A.S. Hitchc. var. robusta (Vasey) Stebbins | Calamagrostis canadensis var. canadensis | Poaceae
|
| CAEX | Calamagrostis expansa (Munro ex Hbd.) A.S. Hitchc. | Maui reedgrass | Poaceae
|
| CAEX11 | Calamagrostis expansa Rickett & Gilly, non (Munro ex Hbd.) A.S. Hitchc. | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAFA5 | Calamagrostis fasciculata Kearney | Calamagrostis rubescens | Poaceae
|
| CAFE | Calamagrostis fernaldii Louis-Marie | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAFO | Calamagrostis foliosa Kearney | leafy reedgrass | Poaceae
|
| CAGI2 | Calamagrostis gigantea Nutt. | Calamovilfa gigantea | Poaceae
|
| CAHI | Calamagrostis hillebrandii (Munro ex Hbd.) A.S. Hitchc. | Hillegrand's reedgrass | Poaceae
|
| CAHO | Calamagrostis holmii Lange | Holm's reedgrass | Poaceae
|
| CAHO2 | Calamagrostis howellii Vasey | Howell's reedgrass | Poaceae
|
| CAHYA | Calamagrostis hyperborea Lange var. americana (Vasey) Kearney | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAHYE | Calamagrostis hyperborea Lange var. elongata Kearney | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAHYS | Calamagrostis hyperborea Lange var. stenodes Kearney | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAINB | Calamagrostis inexpansa Gray var. barbulata Kearney | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAINB2 | Calamagrostis inexpansa Gray var. brevior (Vasey) Stebbins | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAINC | Calamagrostis inexpansa Gray var. cuprea Kearney | Calamagrostis canadensis var. canadensis | Poaceae
|
| CAINN | Calamagrostis inexpansa Gray var. novae-angliae Stebbins | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAINR | Calamagrostis inexpansa Gray var. robusta (Vasey) Stebbins | Calamagrostis canadensis var. canadensis | Poaceae
|
| CAIN | Calamagrostis inexpansa Gray | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAIN16 | Calamagrostis insperata Swallen | Calamagrostis porteri ssp. insperata | Poaceae
|
| CAKO | Calamagrostis koelerioides Vasey | fire reedgrass | Poaceae
|
| CALA29 | Calamagrostis labradorica Kearney | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CALA3 | Calamagrostis �lactea Beal (pro sp.) | Calamagrostis canadensis var. langsdorfii | Poaceae
|
| CALA47 | Calamagrostis lacustris (Kearney) Nash | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CALA43 | Calamagrostis langsdorfii (Link) Trin. | Calamagrostis canadensis var. langsdorfii | Poaceae
|
| CALAA2 | Calamagrostis lapponica (Wahlenb.) Hartman var. alpina Hartman | Calamagrostis lapponica | Poaceae
|
| CALAB3 | Calamagrostis lapponica (Wahlenb.) Hartman var. brevipilis Stebbins | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CALAG | Calamagrostis lapponica (Wahlenb.) Hartman var. groenlandica Lange | Calamagrostis lapponica | Poaceae
|
| CALAN2 | Calamagrostis lapponica (Wahlenb.) Hartman var. nearctica Porsild | Calamagrostis lapponica | Poaceae
|
| CALA6 | Calamagrostis lapponica (Wahlenb.) Hartman | lapland reedgrass | Poaceae
|
| CALE38 | Calamagrostis lemmonii Kearney | Calamagrostis breweri | Poaceae
|
| CALE21 | Calamagrostis lepageana Louis-Marie | Calamagrostis purpurascens | Poaceae
|
| CAMA28 | Calamagrostis macouniana (Vasey) Vasey | Calamagrostis canadensis var. macouniana | Poaceae
|
| CAMA27 | Calamagrostis maltei (Polunin) A.& D. L�ve | Calamagrostis purpurascens | Poaceae
|
| CAMO | Calamagrostis montanensis Scribn. ex Vasey | plains reedgrass | Poaceae
|
| CANES | Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. ssp. stricta (Timm) Tzvelev | Calamagrostis stricta ssp. stricta | Poaceae
|
| CANEG2 | Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. var. gracilis (Scribn.) Scribn. | Calamagrostis stricta ssp. stricta | Poaceae
|
| CANEM | Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. var. micrantha (Kearney) Stebbins | Calamagrostis stricta ssp. stricta | Poaceae
|
| CANE | Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. | Calamagrostis stricta ssp. stricta | Poaceae
|
| CANU6 | Calamagrostis nubila Louis-Marie | Calamagrostis canadensis var. langsdorfii | Poaceae
|
| CANU | Calamagrostis nutkaensis (J. Presl) J. Presl ex Steud. | Pacific reedgrass | Poaceae
|
| CAOP2 | Calamagrostis ophitidis (J.T. Howell) Nygren | serpentine reedgrass | Poaceae
|
| CAPE10 | Calamagrostis perplexa Scribn. | wood reedgrass | Poaceae
|
| CAPID | Calamagrostis pickeringii Gray var. debilis (Kearney) Fern. & Wieg. | Calamagrostis pickeringii | Poaceae
|
| CAPIL2 | Calamagrostis pickeringii Gray var. lacustris (Kearney) A.S. Hitchc. | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAPI | Calamagrostis pickeringii Gray | Pickering's reedgrass | Poaceae
|
| CAPOI | Calamagrostis porteri Gray ssp. insperata (Swallen) C.W. Greene | Porter's reedgrass | Poaceae
|
| CAPOP2 | Calamagrostis porteri Gray ssp. perplexa (Scribn.) Clausen | Calamagrostis perplexa | Poaceae
|
| CAPOP | Calamagrostis porteri Gray ssp. porteri | Porter's reedgrass | Poaceae
|
| CAPO3 | Calamagrostis porteri Gray | Porter's reedgrass | Poaceae
|
| CAPUA2 | Calamagrostis purpurascens R. Br. ssp. arctica (Vasey) Hult�n | Calamagrostis sesquiflora | Poaceae
|
| CAPUM | Calamagrostis purpurascens R. Br. ssp. maltei (Polunin) Porsild | Calamagrostis purpurascens | Poaceae
|
| CAPUT2 | Calamagrostis purpurascens R. Br. ssp. tasuensis Calder & Taylor | Calamagrostis sesquiflora | Poaceae
|
| CAPUA5 | Calamagrostis purpurascens R. Br. var. arctica (Vasey) Kearney | Calamagrostis sesquiflora | Poaceae
|
| CAPUM2 | Calamagrostis purpurascens R. Br. var. maltei Polunin | Calamagrostis purpurascens | Poaceae
|
| CAPUO2 | Calamagrostis purpurascens R. Br. var. ophitidis J.T. Howell | Calamagrostis ophitidis | Poaceae
|
| CAPUT3 | Calamagrostis purpurascens R. Br. var. tasuensis (Calder & Taylor) Boivin | Calamagrostis sesquiflora | Poaceae
|
| CAPU | Calamagrostis purpurascens R. Br. | purple reedgrass | Poaceae
|
| CARO27 | Calamagrostis robertii Porsild | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CARU | Calamagrostis rubescens Buckl. | pinegrass | Poaceae
|
| CASCB4 | Calamagrostis scopulorum M.E. Jones var. bakeri Stebbins | Calamagrostis scopulorum | Poaceae
|
| CASC | Calamagrostis scopulorum M.E. Jones | ditch reedgrass | Poaceae
|
| CASC2 | Calamagrostis scribneri Beal | Calamagrostis canadensis var. canadensis | Poaceae
|
| CASE24 | Calamagrostis sesquiflora (Trin.) Tzvelev | one and a half flower reedgrass | Poaceae
|
| CASTI3 | Calamagrostis stricta (Timm) Koel. ssp. inexpansa (Gray) C.W. Greene | northern reedgrass | Poaceae
|
| CASTS5 | Calamagrostis stricta (Timm) Koel. ssp. stricta | slimstem reedgrass | Poaceae
|
| CASTB3 | Calamagrostis stricta (Timm) Koel. var. brevior Vasey | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CASTL3 | Calamagrostis stricta (Timm) Koel. var. lacustris (Kearney) C.W. Greene | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CAST36 | Calamagrostis stricta (Timm) Koel. | slimstem reedgrass | Poaceae
|
| CATW | Calamagrostis tweedyi (Scribn.) Scribn. ex Vasey | Tweedy's reedgrass | Poaceae
|
| CAVA7 | Calamagrostis vaseyi Beal | Calamagrostis sesquiflora | Poaceae
|
| CAYU2 | Calamagrostis yukonensis Nash | Calamagrostis purpurascens | Poaceae
|
| CALAM | Calamagrostis Adans. | reedgrass | Poaceae
|
| CASA17 | Calamaria saccharata (Engelm.) Kuntze | Isoetes saccharata | Isoetaceae
|
| CAAC6 | Calamintha acinos (L.) Clairville ex Gaud. | Acinos arvensis | Lamiaceae
|
| CAAR33 | Calamintha arkansana (Nutt.) Shinners | Clinopodium arkansanum | Lamiaceae
|
| CAAS5 | Calamintha ascendens Jord. | Calamintha sylvatica ssp. ascendens | Lamiaceae
|
| CAAS9 | Calamintha ashei (Weatherby) Shinners | Clinopodium ashei | Lamiaceae
|
| CACA44 | Calamintha canescens Torr. & Gray ex Benth., non K. Presl | Conradina canescens | Lamiaceae
|
| CACH24 | Calamintha chandleri Brandeg. | Clinopodium chandleri | Lamiaceae
|
| CACO39 | Calamintha coccinea (Nutt. ex Hook.) Benth. | Clinopodium coccineum | Lamiaceae
|
| CADE26 | Calamintha dentata Chapman | Clinopodium dentatum | Lamiaceae
|
| CAGE7 | Calamintha georgiana (Harper) Shinners | Clinopodium georgianum | Lamiaceae
|
| CAGLA2 | Calamintha glabella (Michx.) Benth. var. angustifolia (Torr.) DeWolf | Clinopodium arkansanum | Lamiaceae
|
| CAGL18 | Calamintha glabella (Michx.) Benth. | Clinopodium glabellum | Lamiaceae
|
| CANEG | Calamintha nepeta (L.) Savi ssp. glandulosa (Riquien) P.W. Ball | lesser calamint | Lamiaceae
|
| CANEN | Calamintha nepeta (L.) Savi ssp. ?nepeta | lesser calamint | Lamiaceae
|
| CANE17 | Calamintha nepeta (L.) Savi | lesser calamint | Lamiaceae
|
| CANE22 | Calamintha nepetoides Jord. | Calamintha nepeta ssp. nepeta | Lamiaceae
|