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Nemophila insignis flowers are sky blue with a white eye. The flowers bloom in spring and summer.

Nemophila Insignis

Nemophila insignis flowers are sky blue with a white eye. The flowers bloom in spring and summer.

Nemophila maculata flowers are white with a violet purple blotch on each lobe of the large corolla. The flowers bloom in summer.

Flowering Branch and Detached Branchlet of Nemophila Maculata

Nemophila maculata flowers are white with a violet purple blotch on each lobe of the large corolla.…

Nepenthes is known as the pitcher plant. The distillatoria variety has bright, light green leaves. Pitchers are six to eight inches long.

Stem of Nepenthes Distillatoria

Nepenthes is known as the pitcher plant. The distillatoria variety has bright, light green leaves. Pitchers…

Pictured are the habit, detached portion of inflorescence, and pitcher of the phyllamphora variety of the pitcher plant. The leaves are large, oblong, and bright green. The pitchers are the same colors as the leaves and are five to ten inches long.

Nepenthes Phyllamphora

Pictured are the habit, detached portion of inflorescence, and pitcher of the phyllamphora variety of…

Nerium oleander album plenum is a variety of oleander. The flowers are large and white.

Flowering Branchlet of Nerium Oleander Album Plenum

Nerium oleander album plenum is a variety of oleander. The flowers are large and white.

Nicotiana acutiflora is a variety of tobacco. The flowers are pure white. The flowers bloom from June until frost.

Plant and Detached Flower of Nicotiana Acutiflora

Nicotiana acutiflora is a variety of tobacco. The flowers are pure white. The flowers bloom from June…

Nicotiana suaveolens is a sweet scented variety of tobacco. The flowers are white and fragrant. The flowers bloom in summer. The plant grows between one and two feet tall.

Flowers of Nicotiana Suaveolens

Nicotiana suaveolens is a sweet scented variety of tobacco. The flowers are white and fragrant. The…

Nictotiana wigandioides is a variety of tobacco. This variety is a greenhouse shrub. The flowers are yellowish white.

Nicotiana Wigandioides

Nictotiana wigandioides is a variety of tobacco. This variety is a greenhouse shrub. The flowers are…

Nigella has many common names including devil-in-the-bush, fennel flower, and love-in-a-mist. The damascena variety has white or blue flowers with bright green leaves. Flore-pleno is the double flowered variety.

Habit and Detached Flowering Branchlet of Nigella Damascena Flore-Pleno

Nigella has many common names including devil-in-the-bush, fennel flower, and love-in-a-mist. The damascena…

The fronds of nothochlaena trichomanoides are six to twelve inches long and about to one and a half inches broad. The lower surface is clothed with white powder and fine, woolly hairs.

Frond of Nothochlaena Trichomanoides

The fronds of nothochlaena trichomanoides are six to twelve inches long and about to one and a half…

Nothoscordum fragrans flowers are white with a bar of very pale lilac on the outer side of each division. The flowers are very fragrant.

Habit and Detached Single Flower of Nothoscordum Fragrans

Nothoscordum fragrans flowers are white with a bar of very pale lilac on the outer side of each division.…

Nut weevil is the common name of balaninus nucum. The weevil is one third of an inch long with an egg shaped body. The body is brown or black and covered with gray, yellowish gray, or white gray hairs.

Nut Weevil and Grub

Nut weevil is the common name of balaninus nucum. The weevil is one third of an inch long with an egg…

Common white water lily is the common name of nymphaea alba. The flowers are white and have no scent. The flowers are four to six inches across and float on the surface of the water.

Common White Water Lily

Common white water lily is the common name of nymphaea alba. The flowers are white and have no scent.…

Nymphaea lotus is a synonym of nymphaea thermalis. The common name is Hungarian lotus. The flowers are pure white and bloom during the summer.

Abnormal Inflorescence of Nymphaea Lotus

Nymphaea lotus is a synonym of nymphaea thermalis. The common name is Hungarian lotus. The flowers are…

Sweet or Common Basil is the common name of ocimum basilicum. The flowers are white and bloom in August. The herb grow one foot tall.

Sweet Basil

Sweet or Common Basil is the common name of ocimum basilicum. The flowers are white and bloom in August.…

Odontoglossum crispum flowers have pure white sepals and petals and a yellow lip. The lip is spotted towards the front with blotches of reddish brown.

Odontoglossum Crispum

Odontoglossum crispum flowers have pure white sepals and petals and a yellow lip. The lip is spotted…

Odontoglossum rossii flowers are one to two inches across. The petals are pure white with a few spots at their base. The scapes have two to five flowers. The flowers bloom in winter.

Habit and Detached Single Flower of Odontoglossum Rossii

Odontoglossum rossii flowers are one to two inches across. The petals are pure white with a few spots…

The common name of oenthera is evening primrose. The acaulis variety has white flowers fading into red. The flowers bloom May to September. The plant grows six inches high.

Habit and Detached Leaf and Flower of Oenothera Acaulis

The common name of oenthera is evening primrose. The acaulis variety has white flowers fading into red.…

Pictured are the albicaulis and californica varieties of evening primrose. Albicaulis has white flowers while californica has flowers varying from white to pale pink.

Oenothera Albicaulis and Oenothera Californica

Pictured are the albicaulis and californica varieties of evening primrose. Albicaulis has white flowers…

Oenothera exima is a variety of evening primrose with white flowers that are four inches in diameter. The flowers bloom in July.

Oenothera Exima

Oenothera exima is a variety of evening primrose with white flowers that are four inches in diameter.…

Oenothera speciosa is a variety of evening primrose with white flowers that become reddish as they fade. The flowers bloom March to September.

Flowering Branch of Oenothera Speciosa

Oenothera speciosa is a variety of evening primrose with white flowers that become reddish as they fade.…

Olearia gunnia flowers are white and bloom in September. The branches are hoary. Pictured is a flowering branch, branchlet, and flower head of olearia gunnia.

Olearia Gunniana

Olearia gunnia flowers are white and bloom in September. The branches are hoary. Pictured is a flowering…

Omphalodes verna flowers are blue with a white throat. The flowers bloom March to May. The plant grows six inches tall.

Omphalodes Verna

Omphalodes verna flowers are blue with a white throat. The flowers bloom March to May. The plant grows…

Oncidium luridum flowers are usually a dull yellow or olive green color splotched with brown.

Flower of Oncidium Luridum

Oncidium luridum flowers are usually a dull yellow or olive green color splotched with brown.

The sepals and petals of oncidium varicosum flowers are pale, dull green with dull brown. The lip is large and bright yellow. The scapes are strong, about three feet long.

Flowers of Oncidium Varicosum

The sepals and petals of oncidium varicosum flowers are pale, dull green with dull brown. The lip is…

Deep blood-red onions have bulbs of medium size. The inner part is pure white. The outer coats vary in color from dull to deep, glossy red. This onion has a very strong flavor.

Deep Blood-Red Onions

Deep blood-red onions have bulbs of medium size. The inner part is pure white. The outer coats vary…

Early white Naples onions are an early form of the silver skinned section. The little bulbs are produced in early spring.

Early White Naples Onions

Early white Naples onions are an early form of the silver skinned section. The little bulbs are produced…

The Naples giant rocca onion has a roundish, large bulb. The flesh is thick and white.

Naples Giant Rocca Onion

The Naples giant rocca onion has a roundish, large bulb. The flesh is thick and white.

The queen onion is a small and very early variety of the silver-skinned section. The bulbs are very small but firm and solid. The skin is thin and silvery white.

Queen Onions

The queen onion is a small and very early variety of the silver-skinned section. The bulbs are very…

The white Spanish onion has large bulbs that are somewhat flattened. The base is broad and sometimes a little hollow and uneven. The skin is a pale straw color.

White Spanish Onions

The white Spanish onion has large bulbs that are somewhat flattened. The base is broad and sometimes…

Fly orchis is the common name of ophrys muscifera. The flowers have green sepals and dark red, linear petals. The flowers bloom in June.

Flower of Fly Orchis

Fly orchis is the common name of ophrys muscifera. The flowers have green sepals and dark red, linear…

Opuntia boliviana is a variety of prickly pear. The joints of the plant are about two inches long and are pale green. The prickles are three to four inches long.

Opuntia Boliviana

Opuntia boliviana is a variety of prickly pear. The joints of the plant are about two inches long and…

Lizard orchis is the common name of orchis hircina. The flower is a dirty, greenish white color with a disagreeable smell. The flowers have a long, linear lip.

Flower of Lizard Orchis

Lizard orchis is the common name of orchis hircina. The flower is a dirty, greenish white color with…

Orchis purpurea flowers are green, purple, and spotted. The spikes are usually large and many flowered.

Orchis Purpurea

Orchis purpurea flowers are green, purple, and spotted. The spikes are usually large and many flowered.

The flowers of oreopanax peltatum are greenish white. The leaves are long stalked and five to seven nerved.

Oreopanax Peltatum

The flowers of oreopanax peltatum are greenish white. The leaves are long stalked and five to seven…

The common name of ornithogalum is Star of Bethlehem. The nutans variety has flowers that are white on the upper side and green on the back. The scape is eight to twelve inches long.

Ornithogalum Nutans

The common name of ornithogalum is Star of Bethlehem. The nutans variety has flowers that are white…

Star of Bethlehem is the common name of ornithogalum. The pyramidale variety has pure white flowers marked with a green stripe on the back. The flowers are arranged in clone shaped clusters. The flower clusters are six to eight inches long.

Habit and Detached Single Flower of Ornithogalum Pyramidale

Star of Bethlehem is the common name of ornithogalum. The pyramidale variety has pure white flowers…

The common name of ornithogalum umbellatum is Star of Bethlehem. The flowers are satiny white on the inside and green striped with white on the outside. The flowers bloom in May.

Ornithogalum Umbellatum

The common name of ornithogalum umbellatum is Star of Bethlehem. The flowers are satiny white on the…

Osmanthus fragrans flowers are yellowish or almost white. The flowers bloom June to August. Pictured is the habit and a detached tip of the flowering branch.

Osmanthus Fragrans

Osmanthus fragrans flowers are yellowish or almost white. The flowers bloom June to August. Pictured…

Osyris alba flowers are white and bloom in July. The fruit is red and pea sized. The leaves alternate along the stem and are one inch long. The shrub grows between three and four feet tall.

Osyris Alba

Osyris alba flowers are white and bloom in July. The fruit is red and pea sized. The leaves alternate…

Paeonia albiflora flowers usually have white or pink petals. The flowers are one and a half to two inches broad. The stem is two to three feet long.

Flowering Branch of Paeonia Albiflora

Paeonia albiflora flowers usually have white or pink petals. The flowers are one and a half to two inches…

The common name of paeonia is peony. The wittmanniana variety yellowish white flowers. The flowers bloom in April. Each stem has one flower head.

Flowering Branch of Paeonia Wittmanniana

The common name of paeonia is peony. The wittmanniana variety yellowish white flowers. The flowers bloom…

Paeonia albiflora flore-pleno blanc is a pure white, double herbaceous variety of peony. Pictured is a flowering branch and detached flower.

Paeonia Albiflora Flore-Pleno Blanc

Paeonia albiflora flore-pleno blanc is a pure white, double herbaceous variety of peony. Pictured is…

The common name of pandanus is screw pine. The candelabrum variegatus variety has narrow leaves that are three to six feet in length. The leaves have white spines on the edges.

Pandanus Candelabrum Variegatus

The common name of pandanus is screw pine. The candelabrum variegatus variety has narrow leaves that…

Screw pine is the common name of pandanus. The furcatus variety has broadish, bright green leaves. The leaves are armed with sharp spines.

Pandanus Furcatus

Screw pine is the common name of pandanus. The furcatus variety has broadish, bright green leaves. The…

The common name of passiflora is passion flower. The caerulea variety has flowers that are purple at the bottom, white in the middle, and blue at the ends. Pictured is a portion of a flower bearing branch.

Passiflora Caerulea

The common name of passiflora is passion flower. The caerulea variety has flowers that are purple at…

The common names of pavia are buckeye and smooth-fruited horse chestnut. The californica variety has white or pale rose flowers. The flowers are very fragrant and cover the dense head of the tree. Pictured is the flowering branch, detached leaf, flower, and young fruit of pavia californica.

Pavia Californica

The common names of pavia are buckeye and smooth-fruited horse chestnut. The californica variety has…

The autumn bergamot pear is small and roundish. The skin is brownish green on the shady side and reddish brown next to the sun. The flesh is juicy and richly flavored.

Autumn Bergamot Pear

The autumn bergamot pear is small and roundish. The skin is brownish green on the shady side and reddish…

The Easter Beurre pear is large with dull green skin. The fruit has a buttery and juicy flavor and is finely perfurmed.

Easter Beurre Pear

The Easter Beurre pear is large with dull green skin. The fruit has a buttery and juicy flavor and is…

Uvedale's St. Germain pears are very large with dark green skin. These pears can sometimes weigh over two pounds.

Uvedale's St. Germain Pear

Uvedale's St. Germain pears are very large with dark green skin. These pears can sometimes weigh over…

Pelargonium inquinans flowers vary from intense scarlet, to rose colored, to white. The flowers bloom in July. The shrub grows two feet tall.

Flowering Branch of Pelargonium Inquinans

Pelargonium inquinans flowers vary from intense scarlet, to rose colored, to white. The flowers bloom…

The common name of pelargonium peltatum is ivy-leaved pelargonium. The flowers vary from white to red and vary in size between large and small. The plant grows two feet tall.

Pelargonium Peltatum

The common name of pelargonium peltatum is ivy-leaved pelargonium. The flowers vary from white to red…

The two upper petals of pelargonium tricolor flowers are very dark red and the three lower petals are white. Each stem is one to three flowered. The stem is shrubby, short, and branching.

Inflorescence and Leaf of Pelargonium Tricolor

The two upper petals of pelargonium tricolor flowers are very dark red and the three lower petals are…

The common name of pelargonium zonale is horseshoe geranium. The flowers vary from all shades of red to white. The plant grows two feet tall.

Flowering Branch of Pelargonium Zonale

The common name of pelargonium zonale is horseshoe geranium. The flowers vary from all shades of red…

The common name of peperomia is pepper elder. The marmorata variety has erect flowers in a tail-like catkin. The leaves are rich, bright green variegated with white. The leaves are thick and fleshy.

Habit and Detached Inflorescence of Peperomia Marmorata

The common name of peperomia is pepper elder. The marmorata variety has erect flowers in a tail-like…

Pereski grandiflora is a synonym of pereski grandifolia. The common name of pereski is barbados gooseberry. Grandiflora has solitary, white flowers. The stem is very spiny, the larger spines being two inches long.

Branch of Pereski Grandiflora

Pereski grandiflora is a synonym of pereski grandifolia. The common name of pereski is barbados gooseberry.…

The leaves of pereskia poeppigii are cylindrical and green. The stem is low and upright. The spines are strong and white.

Pereskia Poeppigii

The leaves of pereskia poeppigii are cylindrical and green. The stem is low and upright. The spines…

Pictured is a double perianth as seen in the flower of abutilon insigne. A double perianth has an outer circle of green sepals and an inner circle of colored petals.

Double Perianth

Pictured is a double perianth as seen in the flower of abutilon insigne. A double perianth has an outer…

The common name of peristeria is dove flower. The cerina variety has yellow flower produced in bunches on spikes. The leaves are large and dark green. Illustrated is the habit and detached flowers.

Peristeria Cerina

The common name of peristeria is dove flower. The cerina variety has yellow flower produced in bunches…

The common names of peristeria elata are Dove or Holy Ghost flower. The flowers are white with small lilac specks. The flowers appear July to September. The plant grows four feet tall.

Peristeria Elata

The common names of peristeria elata are Dove or Holy Ghost flower. The flowers are white with small…