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2002 - 200 of 211234 results
Polypodium vulgare nestling among rocks
Polypodium vulgare on top of rock ledge
Polypodium vulgare, sori
Polyporus adustus (Bjerkandera adusta)
Polyporus adustus (Bjerkandera adusta)
Polyporus adustus (Bjerkandera adusta), pores
Polyporus adustus (Bjerkandera adusta), pores, etc.
Polyporus betulinus (Piptoporus betulinus)
Polyporus betulinus (Piptoporus betulinus)
Polyporus betulinus (Piptoporus betulinus)
Polyporus betulinus (Piptoporus betulinus)
Polyporus cinnabarinus (Pycnoporus cinnabarinus)
Polyporus cinnabarinus (Pycnoporus cinnabarinus), lower surface
Polyporus conchifer (Poronidulus conchifer) on American Elm
Polyporus conchifer (Poronidulus conchifer) on American Elm, nearer view
Polyporus frondosus (Grifola frondosa)
Polyporus pergamenus (Trichaptum biforme)
Polyporus picipes (Polyporus badius)
Polyporus picipes (Polyporus badius), near view
Polyporus resinosus (Ischnoderma benzoinum)
Polyporus sulphureus (Laetiporus sulphureus)
Polyporus sulphureus (Laetiporus sulphureus)
Polyporus sulphureus (Laetiporus sulphureus)
Polyporus versicolor (Trametes versicolor)
Polyporus versicolor (Trametes versicolor)
Polyporus versicolor (Trametes versicolor)
Polyporus versicolor (Trametes versicolor)
Polyporus versicolor (Trametes versicolor)
Polyporus versicolor (Trametes versicolor)
Polyprous adustus (Bjerkandera adusta), close up
Polyprous resinosus (Ischnoderma benzoinum)
Polystichum lonchitis, sori, close up
Polystichum lonchitis, sori, close up
Polystichum lonchitis, sori, close up
Polystictus pergamenus (Trichaptum biforme)
Polystictus pergamenus (Trichaptum biforme)
Polystictus versicolor (Trametes versicolor)
Polytrichum bed, male and female with sporophytes
Polytrichum commune
Polytrichum commune
Polytrichum commune
Polytrichum commune in fruit
Polytrichum, male and female sporophytes, close up
Pontederia cordata (Hydrocharis dubia)
Pontederia cordata (Hydrocharis dubia)
Pontederia cordata (Hydrocharis dubia)
Pontederia cordata (Hydrocharis dubia)
Pontederia cordata (Hydrocharis dubia)
Populus alba leaf and Silver Poplar leaf
Populus alba leaves
Populus alba leaves
Populus balsamifera
Populus balsamifera
Populus balsamifera
Populus balsamifera leaves
Populus deltoides
Populus deltoides fruits and seeds
Populus deltoides, leaf of, venation
Populus forest along Highway Number 1 near Grand Marais and the border
Populus Gall causing friction against rock
Populus leaf, venation
Populus leaves
Populus leaves
Populus nigra in early spring
Populus nigra in early spring
Populus nigra leaf
Populus nigra leaf
Populus nigra Tree in early spring
Populus nigra Tree in early spring
Populus tremuloides
Populus tremuloides
Populus tremuloides, close up
Populus tremuloides fruits and seeds
Populus tremuloides leaf
Populus tremuloides leaf
Populus, trunk and bark
Porcupine on the Isabella River
Porella on black ash
Porphyra naiadum (Smithora naiadum) on eel-grass
Portulaca oleracea
Position of bud and flower in Laburnum
Postelsia, distant view
Postelsia, distant view of plants
Postelsia, near view, barnacles and mussels on the rocks
Postelsia, near view of six plants
Postelsia, new view
Potentilla
Potentilla fruticosa
Potentilla fruticosa flower
Potentilla succession on the rocks on the North Shore
Potentilla tridentata
Potentilla tridentata
Potentilla tridentata on the rocks
Pot holes in the rocks at Taylor's Falls
Prairie Rattlesnake near Keota
Preissia
Preissia, near view
Prenanthes alba
Preparing a decoy for bear at the Bald Eagle Camp
Prickly pear cactus and yucca