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Natural graft
Natural graft
Natural graft in Picea
Naucoria sclerotina
Naumburgia thyrsiflora
Naumburgia thyrsiflora
Near Bismarck, North Dakota
Neglected corner in the Minneapolis manufacturing district, weeds and shrubs
Nelumbo lutea
Nelumbo lutea
Nelumbo lutea
Nelumbo lutea
Nelumbo lutea
Nepeta cataria
Nephroma helveticum
Nephroma helveticum
Nereocystic luetkeana
Nereocystis luetkeana
Nereocystis luetkeana
Nereocystis luetkeana
Nereocystis luetkeana
Nereocystis lutkeana
Nereocystis lutkeana
Nereocystis lutkeana
Nereocystis lutkeana, detail
Nereocystis lutkeana, detail
Nereocystis plant held by nine men
Nitella batrachosperma (Nitella confervacea)
Nitella batrachosperma (Nitella confervacea)
Nitella batrachosperma (Nitella confervacea)
Nitophyllum multiobum
North shore forest on Mount Josephine
Nymphaea advena (Nuphar lutea advena)
Oaks and blue flags on a marshy place in the oak-woods
Odonthalia
Old shore line
Old shore line
Old Wood Road
Olearia chathamica, Veronica gigantes, Senecio huntii, Dracophyllum scoparium, Coriaria ruscifolia, Phormium tenax
Olearia semidentata and Dracophyllum politum
Olearia semidentata and Dracophyllum politum
Olearia semidentata, Dracophyllum politum, Uncinia, Luzula, Pteris
Omphalia campanella (Xeromphalina campanella)
Omphalia campanella (Xeromphalina campanella)
Onagra biennis (Oenothera biennis)
Onoclea sensibilis
Onoclea sensibilis
Onoclea struthiopteris (Matteuccia struthiopteris)
Onoclea struthiopteris (Matteuccia struthiopteris)
Onoclea struthiopteris (Matteuccia struthiopteris)