Common medlar is the common name of mespilus germanica. The flowers are white. The leaves are lance shaped and downy underneath.

Fruiting Branch of Common Medlar

Common medlar is the common name of mespilus germanica. The flowers are white. The leaves are lance…

Microcachrys tetragona is also known as strawberry-fruited Cypress of Tasmania. The leaves are deep green and extremely small.

Fruiting Branch of Microcachrys Tetragona

Microcachrys tetragona is also known as strawberry-fruited Cypress of Tasmania. The leaves are deep…

The flowers are moringa aptera are pale yellow. The leaves are one foot or more in length. The entire plant grows between fifteen and twenty feet tall.

Portion of Inflorescence of Moringa Aptera

The flowers are moringa aptera are pale yellow. The leaves are one foot or more in length. The entire…

Musa cavendishii is a variety of banana tree. The leaves are oblong and deep green. The tree grows between five and six feet tall.

Musa Cavendishii

Musa cavendishii is a variety of banana tree. The leaves are oblong and deep green. The tree grows between…

Forget-me-not is the common name of myosotis. The dissitiflora elegantissima variety has large, deep sky blue flowers. The leaves are white edged.

Myosotis Dissitiflora Elegantissima

Forget-me-not is the common name of myosotis. The dissitiflora elegantissima variety has large, deep…

The flowers of myrsiphyllum asparagoides are greenish or white. The flowers bloom in June. The leaves are small and bright glossy green.

Myrsiphyllum Asparagoides

The flowers of myrsiphyllum asparagoides are greenish or white. The flowers bloom in June. The leaves…

Narcissus bulbocodium monphyllus is a variety of hoop petticoat. The flower is white. The leaves are slender and usually solitary.

Narcissus Bulbocodium Monophyllus

Narcissus bulbocodium monphyllus is a variety of hoop petticoat. The flower is white. The leaves are…

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…

Common oleander is the common name of nerium oleander. The leaves of oleander are lance shaped and taper at both ends. Oleander is extremely poisonous.

Leading Branchlet of Nerium Oleander

Common oleander is the common name of nerium oleander. The leaves of oleander are lance shaped and taper…

New Zealand Spinach is cultivated for the use of its young leaves. New Zealand Spinach can be substituted for ordinary spinach.

Branchlet of New Zealand Spinach

New Zealand Spinach is cultivated for the use of its young leaves. New Zealand Spinach can be substituted…

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…

Nothochlaena nivea hookeri ferns have dilated segments and leaves attached at the base.

Frond of Nothochlaena Nivea Hookeri

Nothochlaena nivea hookeri ferns have dilated segments and leaves attached at the base.

Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects for the protection of their young or immature larvae. Pictured is the oak apple gall, about two thirds its natural size. Also pictured is the young root of oak bearing galls.

Oak Galls

Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects…

Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects for the protection of their young or immature larvae. Pictured is a cluster of galls and an oak twig with two galls.

Oak Galls

Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects…

A pictures the silky button galls of oak. B pictures blister galls of oak leaves.

Oak Galls

A pictures the silky button galls of oak. B pictures blister galls of oak leaves.

Oenothera missouriensis latifolia flowers are large and yellow. The leaves are broad.

Oenothera Missouriensis Latifolia

Oenothera missouriensis latifolia flowers are large and yellow. The leaves are broad.

Ononis rotundiflora flowers are rose and grow on three flowered stems. The flowers bloom in summer. The leaves are roundish and toothed.

Habit and Detached Single Flower of Ononis Rotundiflora

Ononis rotundiflora flowers are rose and grow on three flowered stems. The flowers bloom in summer.…

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…

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…

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…

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 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…

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…

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…

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…

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.…

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…

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 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…

Pictured is a potato leaf that has been attacked by phytophthora infestans. Phytophthora infestans is a fungus commonly known as the potato disease fungus. Brown spots appear on the leaves. The lower surface of the spot bears a thin, whitish coating.

Potato Leaf Attacked by Phytophthora Infestans

Pictured is a potato leaf that has been attacked by phytophthora infestans. Phytophthora infestans is…

The common names of picea excelsa are burgundy pitch tree and Norway spruce fir. The leaves are scattered and have four sides.

Picea Excelsa

The common names of picea excelsa are burgundy pitch tree and Norway spruce fir. The leaves are scattered…

The common names of pinguicula vulgaris are bog violet and butter root. The flowers are violet and bloom May to July. The leaves are one to three inches long.

Pinguicula Vulgaris

The common names of pinguicula vulgaris are bog violet and butter root. The flowers are violet and bloom…

Swiss stone pine is the common name of pinus cembra. The leaves are marked with silver lines and are slender and flexible. The tree grows between fifty and one hundred fifty feet tall.

Swiss Stone Pine

Swiss stone pine is the common name of pinus cembra. The leaves are marked with silver lines and are…

The leaves of pinus contorta are bright green and small, from one to two inches long. The branches are numerous and spreading.

Branch of Pinus Contorta

The leaves of pinus contorta are bright green and small, from one to two inches long. The branches are…

The common name of pinus pinaster is cluster pine. The leaves are dark green, stiff, broad, and stout. The leaves are between six and twelve inches long. The cones are yellowish brown and about four inches long.

Branch of Pinus Pinaster

The common name of pinus pinaster is cluster pine. The leaves are dark green, stiff, broad, and stout.…

The order marattiaceae, and the maratiia family, consists of stately tropical ferns with thickened, often erect, stems. The leaves are usually very large. The ophioglossaceae order has plants of small or medium size, often somewhat fleshy.

Marattiaceae and Ophioglossaceae

The order marattiaceae, and the maratiia family, consists of stately tropical ferns with thickened,…