Pictured is a flowering branch and detached flower head of oreopanax andreanum. The flowers are globe shaped heads. The leaves are roundish and the trunk is simple or slightly branched.

Oreopanax Andreanum

Pictured is a flowering branch and detached flower head of oreopanax andreanum. The flowers are globe…

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…

Star of Bethlehem is the common name of ornithogalum. The thyrsoides variety has yellow flowers that bloom in June. There are five to six leaves.

Leaves and Inflorescence of Ornithogalum Thyrsoides

Star of Bethlehem is the common name of ornithogalum. The thyrsoides variety has yellow flowers that…

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…

Othonnopsis cheirifolia flowers are rich yellow and are about one and a half inches across. The leaves are thick and grayish.

Othonnopsis Cheirifolia

Othonnopsis cheirifolia flowers are rich yellow and are about one and a half inches across. The leaves…

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…

Livistona australis is a variety of palm tree. The leaves spread out like the ribs of a fan through the leaf blade.

Livistona Australis

Livistona australis is a variety of palm tree. The leaves spread out like the ribs of a fan through…

Panax murrayi has many flowered umbels. The leaves are often several feet long.

Panax Murrayi

Panax murrayi has many flowered umbels. The leaves are often several feet long.

Pancratium illyricum flowers are small and fragrant. The leaves are broad and strongly veined. The plant grows one and a half feet tall.

Pancratium Illyricum

Pancratium illyricum flowers are small and fragrant. The leaves are broad and strongly veined. The plant…

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…

Screw pine is the common name of pandanus. The houlletii variety has leaves that are four to five feet long. The leaves are greenish red above and deep coppery beneath.

Pandanus Houlletii

Screw pine is the common name of pandanus. The houlletii variety has leaves that are four to five feet…

Pandanus utilis is a variety of screw pine. The leaves are one to two and three quarters feet long. The leaves are erect and armed with sharp, red spines.

Pandanus Utilis

Pandanus utilis is a variety of screw pine. The leaves are one to two and three quarters feet long.…

Pandurate leaves are fiddle shaped. The leaves arer obovate in form, with one or two deep recesses or indentations on each side.

Pandurate Leaf

Pandurate leaves are fiddle shaped. The leaves arer obovate in form, with one or two deep recesses or…

Parsnip roots are eaten as a vegetable. Pictured is a parsnip with a portion of its leaves removed.

Parsnip

Parsnip roots are eaten as a vegetable. Pictured is a parsnip with a portion of its leaves removed.

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 passiflora edulis are passion flower and passion fruit. Edulis is edible. The fruit is a livid purple color when ripe. The pulp is orange colored and has a taste resembling the flavor of an orange.

Fruit and Leaves of Passiflora Edulis

The common names of passiflora edulis are passion flower and passion fruit. Edulis is edible. The fruit…

The common names of passiflora are passion flower and passion fruit. The racemosa variety has deep red or scarlet flowers. The flowers bloom March to October.

Leaf and Inflorescence of Passiflora Racemosa

The common names of passiflora are passion flower and passion fruit. The racemosa variety has deep red…

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…

Rosetelia cancellata fungi causes the leaves to become covered with large, raised spots that are deep red.

Pear Leaves Attacked by Roestelia Cancellata

Rosetelia cancellata fungi causes the leaves to become covered with large, raised spots that are deep…

The larva of psylla pyrisuga live on pear trees and sometimes apple trees. The larvae suck the juice from the leaves.

Larva of Psylla Pyrisuga

The larva of psylla pyrisuga live on pear trees and sometimes apple trees. The larvae suck the juice…

Pictured are pear leaves attacked by phytoptus pyris, also known as gall mites. A represents a leaf recently attacked by mites. B represents a leaf with old mite galls.

Pear Leaf Attacked by Phytoptus Pyris

Pictured are pear leaves attacked by phytoptus pyris, also known as gall mites. A represents a leaf…

Pedate leaves resemble a bird's foot. The leaves are palmately divided or parted with the lateral divisons cleft into smalled segments.

Pedate Leaf

Pedate leaves resemble a bird's foot. The leaves are palmately divided or parted with the lateral divisons…

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…

Pellaea rotundifolia has round leaves. The fronds are six to twelve inches long. There are ten to twenty leaves on each side of the stems.

Pellaea Rotundifolia

Pellaea rotundifolia has round leaves. The fronds are six to twelve inches long. There are ten to twenty…

Peltate leaves are target shaped or shield like. Pictured is a peltate leaf of Indian cress.

Peltate Leaf of Indian Cress

Peltate leaves are target shaped or shield like. Pictured is a peltate leaf of Indian cress.

The flower clusters of pennisetum longistylum grow in spikes from four to six inches long. The leaves are narrow and gracefully arching. The grass is about one foot tall.

Pennisetum Longistylum

The flower clusters of pennisetum longistylum grow in spikes from four to six inches long. The leaves…

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…

Peperomia saundersii leaves are thick and fleshy, about five inches long. The plant grows between eight and ten inches high.

Peperomia Saundersii

Peperomia saundersii leaves are thick and fleshy, about five inches long. The plant grows between eight…

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…

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…

Peronospora nivea is a type of fungus that is common upon the leaves, stems, and roots of wild umbelliferoe and also upon the garden carrot, parsley, and parsnip.

Peronospora Nivea

Peronospora nivea is a type of fungus that is common upon the leaves, stems, and roots of wild umbelliferoe…

The common name of persica is peach. The davidiana variety and small fruit that are yellow when mature. The margins of the leaves are finely serrated.

Fruiting Branch, Leaf, and Stone of Persica Davidiana

The common name of persica is peach. The davidiana variety and small fruit that are yellow when mature.…

Petunia nyctaginiflora flowers grow on alone on small stems. The flowers are large and white. The flowers appear in August.

Flowering Branch of Petunia Nyctaginiflora

Petunia nyctaginiflora flowers grow on alone on small stems. The flowers are large and white. The flowers…

Phaius grandifolius flowers are brown within and white on the outside. The flowers are three to four inches across. The flowers spikes are many flowered and two to four feet tall.

Phaius Grandifolius

Phaius grandifolius flowers are brown within and white on the outside. The flowers are three to four…

The common name of phalaenopsis is moth orchid. The amabilis variety has white flowers with yellow streaks. The flowers sometimes exceed five inches in diameter. The flower appears in autumn.

Phalaenopsis Amabilis

The common name of phalaenopsis is moth orchid. The amabilis variety has white flowers with yellow streaks.…

The common name of philadelphus coronarius is common mock orange or syringa. The flowers are white with a strong, orange-like scent. The flowers appear in May.

Flowering Branchlet of Philadelphus Coronarius

The common name of philadelphus coronarius is common mock orange or syringa. The flowers are white with…

Philadelphus gordonianus is a variety of mock orange. The flowers are white and scentless. The plant grows ten feet tall.

Flowering Branch of Philadelphus Gordonianus

Philadelphus gordonianus is a variety of mock orange. The flowers are white and scentless. The plant…

Philodendron mamei is a fine leaved, stemless herb. The leaves are large, heart shaped, and marked with whitish variegations.

Philodendron Mamei

Philodendron mamei is a fine leaved, stemless herb. The leaves are large, heart shaped, and marked with…

The flowers of philodendron selloum are deep green, bordered with white and white on the inside. The leaves are large, green, and long stalked.

Philodendron Selloum

The flowers of philodendron selloum are deep green, bordered with white and white on the inside. The…

The flowers of philodendron speciosum are purplish green on the outside and purplish red on the inside. The leaves are green and have a triangular shape.

Philodendron Speciosum

The flowers of philodendron speciosum are purplish green on the outside and purplish red on the inside.…

The leaves of philodendron verucosum are heart shaped and a delicate, satiny green. The leaves are shaded with a metallic olive color on the upper surface.

Branch and Detached Leaf of Philodendron Verucosum

The leaves of philodendron verucosum are heart shaped and a delicate, satiny green. The leaves are shaded…

The flowers of phlox drummondii are red, varying to rose, purple or white, with a darker eye. The flowers appear in August.

Inflorescence of Phlox Drummondii

The flowers of phlox drummondii are red, varying to rose, purple or white, with a darker eye. The flowers…

Phlox paniculata flowers are pink-purple, varying to white. The flowers bloom in August. The plant is erect, smooth, rough, or hairy.

Inflorescence of Phlox Paniculata

Phlox paniculata flowers are pink-purple, varying to white. The flowers bloom in August. The plant is…

Phlox subulata nivalis is a white variety of moss pink.

Flowering Branches of Phlox Subulata Nivalis

Phlox subulata nivalis is a white variety of moss pink.

Phlox subulata frondosa is a very vigorous variety with lilac-rose flowers.

Habit and Detached Flower and Leaves of Phlox Subulata Frondosa

Phlox subulata frondosa is a very vigorous variety with lilac-rose flowers.

The common names of photinia japonica are Japan Medlar, Japan Quince, and Loquat. The flowers are white and bloom in autumn. The fruit is the size of a small apple.

Fruiting Branchlet of Photinia Japonica

The common names of photinia japonica are Japan Medlar, Japan Quince, and Loquat. The flowers are white…

The flowers of phyllocactus anguliger are three to five inches in diameter. The petals are white and the sepals are orange or yellowish. The stems are deeply angled.

Phyllocactus Anguliger

The flowers of phyllocactus anguliger are three to five inches in diameter. The petals are white and…

The common name of phyllocladus is celery-leaved pine tree. The leaves of the glauca variety are fan-wedged shaped.

Phyllocladus Glauca

The common name of phyllocladus is celery-leaved pine tree. The leaves of the glauca variety are fan-wedged…