Main page: List of Canadian plants by family
Families: A | B | C | D | E | F | G | H | I J K | L | M | N | O | P Q | R | S | T | U V W | X Y Z
Radulaceae
- Radula auriculata
- Radula complanata
- Radula obconica
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- Radula obtusiloba
- Radula prolifera
- Radula tenax
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Rhytidiaceae
- Rhytidium rugosum — golden glade-moss
Ricciaceae
- Riccia beyrichiana
- Riccia bifurca
- Riccia cavernosa
- Riccia fluitans
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- Riccia frostii
- Riccia sorocarpa
- Riccia sullivantii
- Ricciocarpos natans
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Geum triflorum, Three-Flowered Avens, Old Man's Whisker's, or Prairie Smoke
- Cephalanthus occidentalis — common buttonbush
- Galium aparine — catchweed bedstraw
- Galium asprellum — rough bedstraw
- Galium bifolium — low mountain bedstraw
- Galium boreale — northern bedstraw
- Galium brevipes — limestone swamp bedstraw
- Galium circaezans — licorice bedstraw
- Galium concinnum — shining bedstraw
- Galium kamtschaticum — boreal bedstraw
- Galium labradoricum — bog bedstraw
- Galium lanceolatum — Torrey's wild licorice
- Galium mexicanum — Mexican bedstraw
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Ruppiaceae
- Ruppia cirrhosa — widgeon-grass
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