Browse by genus:

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Genus names beginning with R:
61 genera
409 species
88 subspecies and varieties
Show only taxa with photos
Racodium (1 species)
Radiigera (2 species)
Radula (3 species)
Radulomyces (2 species)
Rainiera – rainiera (1 species)
Ramalina (10 species)
Ramaria (52 species)
Ramaricium (1 species)
Ramariopsis (1 species)
Ranunculus – buttercup (29 species)
Ranunculus – crowfoot (29 species)
Ranunculus – water-buttercup (29 species)
Raphanus – radish (2 species)
Ratibida – prairie coneflower (0 species)
Ratibida – Mexican-hat (0 species)
Reboulia (1 species)
Redfieldia (1 species)
Reseda – mignonette (2 species)
Resinicium (1 species)
Resinomycena (2 species)
Rhamnus – buckthorn (2 species)
Rhamnus – cascara (2 species)
Rhaponticum – hardheads (1 species)
Rhaponticum – maral root (1 species)
Rheum – rhubarb (1 species)
Rhinanthus – rattle-box (1 species)
Rhinanthus – yellow rattle (1 species)
Rhizina (1 species)
Rhizocarpon (25 species)
Rhizoplaca (3 species)
Rhizopogon (45 species)
Rhodiola – roseroot (1 species)
Rhodocollybia (6 species)
Rhodocybe (4 species)
Rhododendron – azalea (6 species)
Rhododendron – Labrador-tea (6 species)
Rhododendron – menziesia (6 species)
Rhododendron – rhododendron (6 species)
Rhodofomes (1 species)
Rhodonia (1 species)
Rhodotarzetta (1 species)
Rhus – sumac (2 species)
Rhynchospora – beakrush (1 species)
Rhytisma (1 species)
Ribes – currant (21 species)
Ribes – gooseberry (21 species)
Riccardia (4 species)
Riccia (6 species)
Ricciocarpos (1 species)
Rickenella (2 species)
Rigidoporus (1 species)
Rigiopappus (1 species)
Rimbachia (1 species)
Rimularia (2 species)
Rinodina (17 species)
Rivulariella (1 species)
Robinia – locust (2 species)
Romanzoffia – mistmaiden (2 species)
Romanzoffia – romanzoffia (2 species)
Roridomyces (1 species)
Rorippa – yellowcress (9 species)
Rosa – rose (8 species)
Roseodiscus (1 species)
Rotala – rotala (1 species)
Rotala – toothcup (1 species)
Rubus – blackberry (17 species)
Rubus – bramble (17 species)
Rubus – raspberry (17 species)
Rudbeckia – coneflower (4 species)
Rudbeckia – rudbeckia (4 species)
Rufoplaca (1 species)
Rumex – dock (16 species)
Rumex – sorrel (16 species)
Rupertia – scurfpea (1 species)
Rupertia – California tea (1 species)
Ruppia – ditch-grass (1 species)
Rusavskia (2 species)
Russula (70 species)