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Nicotiana sylvestris

White Shooting Stars, White Tobacco
Nicotiana sylvestris Nicotiana sylvestris Nicotiana sylvestris Nicotiana sylvestris Nicotiana sylvestris Nicotiana sylvestris Nicotiana sylvestris flowers Nicotiana sylvestris flowers Nicotiana sylvestris form Nicotiana sylvestris form Nicotiana sylvestris leaf Nicotiana sylvestris leaf

Nicotiana tabacum

Tobacco
large broad leaves turning yellow. large broad leaves turning yellow. Pale pink tubular flowers Pale pink tubular flowers Close up of pink flower. Close up of pink flower. Pale pink tubular flowers Pale pink tubular flowers Large leaves borne along upright stems. Large leaves borne along upright stems.

Nicotiana x sanderi

Flowering Tobacco
Nicotiana-x-sanderae-Perfume-Lime Nicotiana-x-sanderae-Perfume-Lime Nicotiana-x-sanderae-Perfume-Lime Nicotiana-x-sanderae-Perfume-Lime dusty rose pink tubular flowers dusty rose pink tubular flowers Pale pink tubular flowers Pale pink tubular flowers
2 Cultivars/Varieties

Nierembergia linariifolia

Cupflower, Nierembergia
Nierembergia hippomanica Nierembergia hippomanica Nierembergia linariifolia Nierembergia linariifolia
2 Cultivars/Varieties

Nigella damascena

Love in a Mist, Love-in-a-mist, Nigella
nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena nigella damascena

Nipponanthemum nipponicum

Montauk Daisy, Nippon Daisy
White-with-yellow eye daisy flowers White-with-yellow eye daisy flowers Nipponanthemum nipponicum Nipponanthemum nipponicum Nipponanthemum nipponicum Nipponanthemum nipponicum White-with-yellow eye daisy flowers White-with-yellow eye daisy flowers White-with-yellow eye daisy flowers White-with-yellow eye daisy flowers

Nolina nelsonii

Blue Nolina, Nelson's Beargrass, Nelson's Blue Beargrass
Full Form Full Form Young Form Young Form Leaves Leaves In Winter In Winter Form under Sun Form under Sun Form Form

Nostoc spp.

Algae, Witch's jelly
Nostoc spp. Nostoc spp. Nostoc spp. Nostoc spp.

Nothochelone nemorosa

Woodland Beardtongue
Flowers Flowers Growing along a stream in OR Growing along a stream in OR Form Form Serrated leaves, flower and bud Serrated leaves, flower and bud Leaves and stem Leaves and stem Underside of leaf Underside of leaf

Notholithocarpus densiflorus

Mutant Tanoak, Tanbark-oak, Tanoak
Sapling in November in Monterrey County, California Sapling in November in Monterrey County, California Trunk in October in Coos County, Oregon Trunk in October in Coos County, Oregon Leaves in October in Marin County, California Leaves in October in Marin County, California Leaf underside in October in Marin County, California Leaf underside in October in Marin County, California Catkins in November in Santa Clara County California Catkins in November in Santa Clara County California Flower bud in August in Humboldt County, California Flower bud in August in Humboldt County, California
2 Cultivars/Varieties

Nothoscordum sellowianum

False Crocus, False Garlic, false yellow crocus
Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum Nothoscordum sellowianum

Nuphar luteum

Brandy-Bottle, Spadderdock, Yellow Water Lily
Growing in water Growing in water Yellow flower abover the water Yellow flower abover the water Close up of the yellow flower Close up of the yellow flower Green leathery floating leaf Green leathery floating leaf Thick spongy branching rhizomes Thick spongy branching rhizomes Green capsule forming in fall Green capsule forming in fall

Nuttallanthus canadensis

Blue Toadflax, Canadian Toadflax, Toad-flax
Flowers Flowers Form in bloom Form in bloom Leaves and stems Leaves and stems

Nymphaea

Waterlily, Water Lily
N. odorata white flower close up N. odorata white flower close up N. odorata white flower and green leaves N. odorata white flower and green leaves N. odorata white flower and green leaves N. odorata white flower and green leaves Pink flower detail Pink flower detail Lavender flowers of N. violacea Lavender flowers of N. violacea White flower of N. alba White flower of N. alba
3 Cultivars/Varieties

Nymphaea – Hardy Water Lilies

Flower of N. 'Arc-en-ciel' Flower of N. 'Arc-en-ciel' White flowers amoung green leaves White flowers amoung green leaves Pink flower of 'Attraction Pink flower of 'Attraction 'Charlene Strawn' flower close up 'Charlene Strawn' flower close up Leaves of 'Charlene Strawn' Leaves of 'Charlene Strawn' Close up of pink-red flower of 'Charles de 'Meurville' Close up of pink-red flower of 'Charles de 'Meurville'
58 Cultivars/Varieties

Nymphaea – Tropical Day Blooming Water Lilies

Waterlily, Water Lily
'Albert Greenberg' Apricot pink flowers, mottled leaves 'Albert Greenberg' Apricot pink flowers, mottled leaves 'Albert Greenberg' Mottled rounded leaves in water 'Albert Greenberg' Mottled rounded leaves in water 'Bagdad' Bluish fowers and mottled leaves 'Bagdad' Bluish fowers and mottled leaves "Blue Beauty' Blue flower lay on its side "Blue Beauty' Blue flower lay on its side 'Colorata' Lavender flower close up 'Colorata' Lavender flower close up 'Daubeniana' Close up of light blue flower 'Daubeniana' Close up of light blue flower
23 Cultivars/Varieties

Nymphaea – Tropical Night Blooming Water Lilies

Waterlily, Water Lily
'Antares' Large green rounded leaves in a pond 'Antares' Large green rounded leaves in a pond 'Catherine Marie' Closed pink blooms above light green leaves i 'Catherine Marie' Closed pink blooms above light green leaves i 'Missouri' White flowers with yellow centers in a pond 'Missouri' White flowers with yellow centers in a pond 'Red Cup' Flower bud and silvery round leaves in a pond 'Red Cup' Flower bud and silvery round leaves in a pond 'Trudy Slocum' White flower opening and green round leaves in a 'Trudy Slocum' White flower opening and green round leaves in a 'Red Flare' Red flower and reddish round leaves 'Red Flare' Red flower and reddish round leaves
8 Cultivars/Varieties

Nymphoides cordata

Little Floatingheart
Form in bloom Form in bloom Flower detail Flower detail White flowers and foliage White flowers and foliage Foliage Foliage Stem, red underside of leaf and floating roots Stem, red underside of leaf and floating roots

Nymphoides cristata

Crested Floating Heart
Form Form Flower detail Flower detail Leaves with red margins Leaves with red margins Flower attachment Flower attachment Red underside of leaf Red underside of leaf

Nymphoides peltata

Floating Heart, Yellow Floating Heart
Nymphoides pelatum Nymphoides pelatum Nymphoides pelatum Nymphoides pelatum Nymphoides pelatum Nymphoides pelatum Nymphoides pelatum Nymphoides pelatum

Nyssa aquatica

Cotton Gum, Sour Gum, Swamp Tupelo, Tupelo Gum, Water Tupelo, Wild Olive
Nyssa aquatica Form Nyssa aquatica Form Nyssa aquatica Nyssa aquatica Nyssa aquatica Nyssa aquatica Nyssa aquatica Nyssa aquatica Nyssa aquatica Nyssa aquatica

Nyssa biflora

Black Gum, Swamp Tupelo, Water Gum
Form Form Flowers Flowers Flowers Flowers Branch with leaves Branch with leaves Leaves Leaves Underside of leaf Underside of leaf

Nyssa ogeche

Ogeechee Lime, Ogeechee Tupelo
Foliage Foliage Fruit (unripe) Fruit (unripe)

Nyssa sinensis

Chinese Tupelo
Large, ovate, entire leaves Large, ovate, entire leaves ruler next to a leaf to show it is ca. 16 cm long. ruler next to a leaf to show it is ca. 16 cm long. ruler next to green fruits to show they are ca. 3 cm long. ruler next to green fruits to show they are ca. 3 cm long. Reddish leaves and black, olive-like fruits. Reddish leaves and black, olive-like fruits.

Nyssa sylvatica

Blackgum, Black Gum, Black Tupelo, Common Tupelo Tree, Cotton Gum, Nyssa, Pepperidge, Sour Gum, Tupelo
Nyssa sylvatica Nyssa sylvatica Flower and Leaves Detail Flower and Leaves Detail Bark Bark Fall Leaves Close-up Fall Leaves Close-up Nyssa sylvatica Nyssa sylvatica Nyssa sylvatica Nyssa sylvatica
14 Cultivars/Varieties

Ocimum basilicum

Basil, Genovese Basil, Purple Basil, Saint Joseph's Wort, Sweet Basil, Thai Basil
Ocimum basilicum Ocimum basilicum Seedling Seedling Ocimum basilicum Ocimum basilicum Ocimum basilicum Ocimum basilicum 'Purple Ruffles' Form 'Purple Ruffles' Form Ocimum basilicum Ocimum basilicum
26 Cultivars/Varieties

Ocimum kilimandscharicum x basilicum

African Blue Basil

Ocimum tenuiflorum

Holy Basil, Hot Basil, Tulasi, Tulsi
Opposite leaves Opposite leaves Ocimum tenuiflorum Ocimum tenuiflorum Ocimum tenuiflorum Ocimum tenuiflorum Purple-leaved seedling withy hairy stem. Purple-leaved seedling withy hairy stem. Ocimum tenuiflorum Ocimum tenuiflorum Green-leaved seedling with hairy stem. Green-leaved seedling with hairy stem.

Oclemena acuminata

Acuminate Aster, Mountain Aster, Sharp-leaved Aster,, Sharp-toothed Nodding-aster, Whorled Aster, Whorled Wood Aster
Flowers Flowers Form Form Close up of flower Close up of flower Stem with hairs Stem with hairs Leaf Leaf Underside of leaf Underside of leaf

Odontonema tubaeforme

Cardinal Flower, Cardinal's Guard, Firespike
Odontonema-strictum Odontonema-strictum

Oenothera berlandieri 'Siskiyou'

Berlandier's Sundrops, Evening Primrose, Mexican Evening Primrose, Pink Ladies, White Evening Primrose
Oenothera berlandieri 'Siskiyou' Oenothera berlandieri 'Siskiyou'

Oenothera biennis

Evening Primrose
Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis Oenothera biennis

Oenothera fruticosa

Narrow-leaf Evening Primrose, Southern Sundrops, Sundrops
Plant Plant Flowers Flowers Hedge Hedge Oenothera fruticosa Oenothera fruticosa Oenothera fruticosa leaves in the fall in Moore County Oenothera fruticosa leaves in the fall in Moore County Oenothera fruticosa leaves in the fall in Moore County Oenothera fruticosa leaves in the fall in Moore County
3 Cultivars/Varieties

Oenothera gaura

Beeblossom, Biennial Gaura
Native habitat Native habitat Form Form Flowers Flowers Flowers and buds Flowers and buds Leaves Leaves Fruits forming Fruits forming

Oenothera lindheimeri

Appleblossom Grass, Bee Blossom, Butterfly Gaura, Indian feather, Lindheimer's Beeblossom, Lindheimer's clockweed, Lindheimer's Gaura, Pink Gaura, Wand Flower, Whirling butterflies, White Gaura
Close up of flower Close up of flower 'Siskiyou Pink' 'Siskiyou Pink' Flower Flower Flower stalk Flower stalk Leaves Leaves Back of bloom Back of bloom
14 Cultivars/Varieties

Oenothera lindheimeri 'Belleza'

Belleza® Gaura, Gaura
Spring form Spring form Flowers Flowers Plant in fall Plant in fall Leaves Leaves Flowers with bumble bee Flowers with bumble bee

Oenothera lindheimeri 'Siskiyou Pink'

Gaura, 'Siskiyou Pink' Gaura

Oenothera speciosa

Mexican Evening Primrose, Pink Buttercups, Pink Evening Primrose, Pink Ladies, Showy Evening Primrose
Close up of flower Close up of flower Form Form Leaves Leaves Spreading in a field Spreading in a field Oenothera speciosa Oenothera speciosa Oenothera speciosa Oenothera speciosa

Oenothera tetragona

Northern Sundrops, Sundrops
Oenothera tetragona Oenothera tetragona Oenothera tetragona Oenothera tetragona Oenothera tetragona Oenothera tetragona Oenothera tetragona Oenothera tetragona Oenothera tetragona Oenothera tetragona

Olea europaea

Common Olive, European Olive, Olive
Olea europaea Olea europaea Trunk of a mature tree Trunk of a mature tree Mature fruit Mature fruit Flowers Flowers Olea europaea Olea europaea Leaf closeup Leaf closeup
5 Cultivars/Varieties

Omphalotus illudens

Jack-O-Lantern
Omphalotus olearius (Clitocybe illudens) Omphalotus olearius (Clitocybe illudens) Omphalotus olearius (Clitocybe illudens) Omphalotus olearius (Clitocybe illudens)

Oncidium

Butterfly Orchids, Dancing Lady Orchid, Oncidium Orchid
7 Cultivars/Varieties

Oncidium alexandrae

Curled Odontoglossum, Lace Orchid
Oncidium Alexandrae Oncidium Alexandrae Oncidium Alexandrae Oncidium Alexandrae Oncidium alexandrae Pacho typus flower Oncidium alexandrae Pacho typus flower Oncidium alexandrae flowers Oncidium alexandrae flowers Botanical Drawing Botanical Drawing

Oncidium sphacelatum

Popcorn Orchid
Many small yellow flowers with brown spots. Many small yellow flowers with brown spots. Spray of yellow orchids with brown bars on their petals. Spray of yellow orchids with brown bars on their petals.

Onoclea sensibilis

Bead Fern, Sensitive Fern
fern. fern. Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis Onoclea sensibilis

Onoclea struthiopteris

Fiddlehead Fern, Ostrich-Feather Fern, Ostrich Fern, Shuttlecock Fern
fern. fern. fronds. fronds. fronds. fronds. fronds. fronds. fern. fern. curled, emerging fronds. curled, emerging fronds.
1 Cultivar/Variety

Onychium japonicum

Carrot Fern, Cat's Claw Fern, Claw Fern, Sichuan Lace
Onychium japonicum Onychium japonicum Onychium japonicum Onychium japonicum Onychium japonicum Onychium japonicum Onychium japonicum Onychium japonicum Onychium japonicum Onychium japonicum
2 Cultivars/Varieties

Ophiopogon intermedius

Aztec Grass
Form in October in Darjeeling, India Form in October in Darjeeling, India Flower buds in June in Darjeeling, India Flower buds in June in Darjeeling, India Flowers in June in Darjeeling, India Flowers in June in Darjeeling, India Flowers in July in Chiayi County, Taiwan Flowers in July in Chiayi County, Taiwan Leaves in April in Taichung County, Taiwan Leaves in April in Taichung County, Taiwan
1 Cultivar/Variety