Semantic search
- Bromus pumpellianus subsp. dicksonii
- Bromus pumpellianus subsp. pumpellianus
- Bromus richardsonii
- Bromus riparius
- Bromus sect. Bromopsis
- Bromus sect. Bromus
- Bromus sect. Ceratochloa
- Bromus sect. Genea
- Bromus sect. Neobromus
- Bryobrittonia longipes
- Bryoerythrophyllum recurvirostrum
- Bryum argenteum var. argenteum
- Bryum blindii
- Bryum lanatum
- Calamagrostis
- Calamagrostis canadensis
- Calamagrostis canadensis var. langsdorffii
- Calamagrostis cinnoides
- Calamagrostis deschampsioides
- Calamagrostis epigejos
- Calamagrostis lapponica
- Calamagrostis purpurascens
- Calamagrostis stricta
- Calamagrostis stricta subsp. inexpansa
- Calamagrostis stricta subsp. stricta
- Calamagrostis ×acutiflora
- Calla palustris
- Calliergon cordifolium
- Calliergon giganteum
- Calliergon richardsonii
- Callitriche palustris
- Calypso bulbosa var. americana
- Camelina microcarpa
- Camelina sativa
- Campylium stellatum
- Capsella bursa-pastoris
- Cardamine bellidifolia
- Cardamine nymanii
- Carex adelostoma
- Carex aquatilis
- Carex aquatilis var. aquatilis
- Carex aquatilis var. minor
- Carex atrofusca
- Carex bicolor
- Carex bigelowii
- Carex bigelowii subsp. bigelowii
- Carex bigelowii subsp. lugens
- Carex capillaris
- Carex capitata
- Carex chordorrhiza