Raynolds Sedge
Rays Knotweed
Razor Grass
Readers Physcomitrella Moss
Rebutia
Reclined Gumweed
Reclining Bulrush
Reclusive Ladys Tresses
Recurved Blackberry
Recurved Brotherella Moss
Recurved Bryoerythrophyllum Moss
Recurved Hypnum Moss
Recurved Leaf Paraleptodontium Moss
Recurved Milkvetch
Recurved Small Limestone Moss
Recurved Sphagnum
Red Alder
Red Amaranth
Red Baneberry
Red Barberry