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A common beech, this large European beech features toothed leaves.

Fagus Sylvatica

A common beech, this large European beech features toothed leaves.

Also known as Rhus radicans or rhus toxicodendron. The leaves of this plant produces urushiol, which causes an itching rash to anyone who touches it.

Poison Ivy

Also known as Rhus radicans or rhus toxicodendron. The leaves of this plant produces urushiol, which…

Also known as Crioceris asparagi.Spray of asparagus, with common asparagus beetle in its different stages. This beetle feeds only on asparagus, and it strips the leaves of the plant to prevent it from photosynthesizing.

Asparagus Beetle

Also known as Crioceris asparagi.Spray of asparagus, with common asparagus beetle in its different stages.…

A branch of Piper porphyrophyllum. It is generally between 4 and 6 inches in length and consists of rich bronzy-green leaves.

Piper Porphyrophyllum

A branch of Piper porphyrophyllum. It is generally between 4 and 6 inches in length and consists of…

The image depicts the flower and portion of a leaf of the Pitcairnia andreana. The petals are yellow at the tip with red at the bottom.

Pitcairnia Andreana

The image depicts the flower and portion of a leaf of the Pitcairnia andreana. The petals are yellow…

This shrub has oval leathery leaves and small white flowers. It is a common landscaping plant.

Pittosporum Tobira

This shrub has oval leathery leaves and small white flowers. It is a common landscaping plant.

Also known as Podophyllum peltatum. They generally reach 2 inches in height, and have 2-3 umbrella-like leaves. The leaves and roots of this plant are poisonous when consumed in large quantities.

Mayapple

Also known as Podophyllum peltatum. They generally reach 2 inches in height, and have 2-3 umbrella-like…

Also known as Polygonum cuspidatum. It has hollow stems and has a similar appearance to bamboo. The flowers are small and white, and the leaves are in the shape of an oval.

Japanese Knotweed

Also known as Polygonum cuspidatum. It has hollow stems and has a similar appearance to bamboo. The…

Also known as Polygonum orientale. A flower that is commonly found in southeastern Asia and Australia. It consists of red drooping flowers and ovate leaves.

Prince's Feather

Also known as Polygonum orientale. A flower that is commonly found in southeastern Asia and Australia.…

Also known as Polygonum sachalinense. It is native to northeastern Asia and northern Japan. The flowers are a greenish-yellow color, with long-pointed ovate leaves.

Giant Knotweed

Also known as Polygonum sachalinense. It is native to northeastern Asia and northern Japan. The flowers…

A stout plant with grey scales. The fronds range between 1 and 2 feet, and approximately 1 foot in width. They are commonly found in Brazil.

Polypodium Brasiliense

A stout plant with grey scales. The fronds range between 1 and 2 feet, and approximately 1 foot in width.…

A fern with fronds ranging between 1.5 feet and 3 feet in length.

Polypodium Drepanum

A fern with fronds ranging between 1.5 feet and 3 feet in length.

An oak fern with slender leaves that are generally between 6 and 10 inches. They are commonly found in the Northern hemisphere, such as Great Britain.

Polypodium Dryopteris

An oak fern with slender leaves that are generally between 6 and 10 inches. They are commonly found…

A stout fern with light brown scales. The fronds of this fern range between 3 and 6 feet in length, and 2 feet in width.

Polypodium Heracleum

A stout fern with light brown scales. The fronds of this fern range between 3 and 6 feet in length,…

This fern has broader, oblong fronds in comparison to the Polypodium lingua, whose fronds are between 4 and 8 inches in lngeth, and 1 to 4 inches in width.

Polypodium Lingua Heteractis

This fern has broader, oblong fronds in comparison to the Polypodium lingua, whose fronds are between…

A fern with short, ovate fronds.

Polypodium Lycopodioides Owariense

A fern with short, ovate fronds.

A stout fern with brown scales. Fronds range between 1 foot and 3 feet in length, and 1 inch in width.

Polypodium Phyllitidis

A stout fern with brown scales. Fronds range between 1 foot and 3 feet in length, and 1 inch in width.

A wide-creeping fern with squarrose scales. Fertile fronds are narrow and long, whereas the barren ones are oblong, between 1 inch and 3 inches long.

Polypodium Piloselloides

A wide-creeping fern with squarrose scales. Fertile fronds are narrow and long, whereas the barren ones…

A woody fern with numerous branches and dark brown, squarrose scales. They are commonly found in New Zealand and Australia.

Polypodium Pustulatum

A woody fern with numerous branches and dark brown, squarrose scales. They are commonly found in New…

A wide-creeping fern with reddish-brown scales. The fronds of this fern are approximately 2 feet in length, and 1 to 3 inches broad.

Polypodium Stigmaticum

A wide-creeping fern with reddish-brown scales. The fronds of this fern are approximately 2 feet in…

A slender wide-creeping fern with grey and/or reddish-brown scales. They are commonly found between Jamaica and Paraguay.

Polypodium Vacciniifolium

A slender wide-creeping fern with grey and/or reddish-brown scales. They are commonly found between…

A fern with fronds between 12 inches and 20 inches in length, with the width ranging between 4 inches and 8 inches.

Polypodium Vulgare Cambricum

A fern with fronds between 12 inches and 20 inches in length, with the width ranging between 4 inches…

An elegant form of the Polypodium vulgare. The fronds are very finely divided.

Polypodium Vulgare Elegantissimum

An elegant form of the Polypodium vulgare. The fronds are very finely divided.

A large-fronded fern with straw-colored leaves. It is commonly found in tropical America.

Pteris Grandifolia

A large-fronded fern with straw-colored leaves. It is commonly found in tropical America.

A slender-fronded fern with straw-colored leaves. The fronds can reach between 9 inches and 12 inches in length. It is commonly found in Brazil.

Pteris Leptophylla

A slender-fronded fern with straw-colored leaves. The fronds can reach between 9 inches and 12 inches…

A four-eared fern with fronds ranging between 6 inches and 3 feet in length. They are commonly found in the Tropics.

Pteris Quadriaurita Argyaea

A four-eared fern with fronds ranging between 6 inches and 3 feet in length. They are commonly found…

An arrow-fronded fern with blackish, long leaves. They are common between Venezuela and Brazil.

Pteris Sagittifolia

An arrow-fronded fern with blackish, long leaves. They are common between Venezuela and Brazil.

A wide-creeping fern with long reddish-brown fronds, which grow to be approximately 1 foot in length. They are usually found in New Zealand.

Pteris Scaberula

A wide-creeping fern with long reddish-brown fronds, which grow to be approximately 1 foot in length.…

A bright brown fern with fronds reaching between 1 foot and 1.5 feet. They are commonly found in the East Indies.

Pteris Semipinnata

A bright brown fern with fronds reaching between 1 foot and 1.5 feet. They are commonly found in the…

A slender-fronded fern with pinnae that are narrower than those of a regular Pteris serrulata, and has saw-edged leaves. They are commonly found in China.

Pteris Serrulata Tenuifolia

A slender-fronded fern with pinnae that are narrower than those of a regular Pteris serrulata, and has…

A trembling fern with fronds ranging between 2 feet and 4 feet in length, and 6 inches and 2 feet in width. They are commonly found in greenhouses in New Zealand and Australia.

Pteris Tremula

A trembling fern with fronds ranging between 2 feet and 4 feet in length, and 6 inches and 2 feet in…

A shrub that is native to Europe, northwest Africa, and western Asia. It reaches up to 13 feet in height, and is covered in small oval leaves and yellow flowers. The fruit produced on this shrub is sour, but edible, and rich in Vitamin C.

Berberis Vulgaris

A shrub that is native to Europe, northwest Africa, and western Asia. It reaches up to 13 feet in height,…

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal herb, and the leaves are commonly eaten by caterpillars. They reach up to 1 foot in height.

Pulmonaris Officinalis

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal…

A pink flower that typically blooms in June. The elliptical leaves are dark green, with silver specks that give it a marbled appearance. They are usually found in Europe.

Pulmonaria Saccharata

A pink flower that typically blooms in June. The elliptical leaves are dark green, with silver specks…

A white flower with stripes of blue down the center. It typically blooms in the Spring, and is found in Asia and the Middle East. The leaves grow in twos, and are strap-like.

Puschkinia Scilloides

A white flower with stripes of blue down the center. It typically blooms in the Spring, and is found…

A birch-leaved tree with brownish fronds dotted with white. They tend to reach about 22 feet in height, and produce inedible brown fruits.

Pyrus Betulaefolia

A birch-leaved tree with brownish fronds dotted with white. They tend to reach about 22 feet in height,…

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated. They are native to Japan.

Pyrus Japonica

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated.…

A plant which produces white or faintly pink flowers, with very small leaves and lobed leaves. They are common in Japan and bloom in May.

Pyrus Toringo

A plant which produces white or faintly pink flowers, with very small leaves and lobed leaves. They…

Also known as Campanula rapunculus. "A hardy biennial, cultivated for the use of its fleshy roots in salads, either boiled or in a raw state, generally the latter; the leaves are also used in winter salads."—Nicholson, 1884

Rampion

Also known as Campanula rapunculus. "A hardy biennial, cultivated for the use of its fleshy roots in…

A plant which produces numerous flowers with oblong white petals. The leaves and stems are slightly hairy. They are commonly found in central and southern Europe.

Ranunculus Aconitifolius

A plant which produces numerous flowers with oblong white petals. The leaves and stems are slightly…

A perennial flower with white petals and green foliage. They tend to bloom in April and May, and are found in the Western Alps.

Ranunculus Amplexicaulis

A perennial flower with white petals and green foliage. They tend to bloom in April and May, and are…

Also known as Rhamnus cathartica. It is a deciduous shrub with grey-brown bark and spiny branches. The leaves are ovate and acutely serrated. The height of this plant reaches between 5 feet and 10 feet.

Buckthorn

Also known as Rhamnus cathartica. It is a deciduous shrub with grey-brown bark and spiny branches. The…

A plant with dense amounts of leaves. The stems grow up to 5 feet, and are commonly found in Siberia.

Rheum Undulatum

A plant with dense amounts of leaves. The stems grow up to 5 feet, and are commonly found in Siberia.

A dense shrub with evergreen leaves and purple flowers, and is used as an ornamental plant. Honey produced with the pollen of the flowers of this plant have been known to be poisonous to human consumption. It is commonly found in Asia.

Rhododendron Ponticum

A dense shrub with evergreen leaves and purple flowers, and is used as an ornamental plant. Honey produced…

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and remain throughout the winter.

Rhus Glabra Laciniata

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and…

The leaflets are often serrated and sheath at the base.

Rose Leaf

The leaflets are often serrated and sheath at the base.

A dwarf form of the Rosa centifolia, having small flowers and leaves. The flowers are rose-purple with ovate, serrated leaves and scattered prickles.

Rosa Centifolia Pomponia

A dwarf form of the Rosa centifolia, having small flowers and leaves. The flowers are rose-purple with…

A variable flower with red petals and leathery, ovate leaves. The prickles are unequally distributed, and it commonly reaches between 2 ft and 3 ft.

Rosa Gallica

A variable flower with red petals and leathery, ovate leaves. The prickles are unequally distributed,…

A parasite which feeds as larvae in rose-twigs or upon the leaves. Some species are confined to roses for their food, while others can also feed on other plants.

Larvae of Rose Sawfly

A parasite which feeds as larvae in rose-twigs or upon the leaves. Some species are confined to roses…

Also known as Rubus fruticosus caesius. The fruit is reminiscent of a raspberry, but is usually purple or black instead of red. They are commonly found in the Northern hemisphere, and the leaves can be used for tea.

European Dewberry

Also known as Rubus fruticosus caesius. The fruit is reminiscent of a raspberry, but is usually purple…

Also known as Rudbeckia pinnata. The flowers have drooping yellow petals and can grow up to 5 ft in height. The leaves are a dull green and thin with toothed edges.

Grey-Headed Coneflower

Also known as Rudbeckia pinnata. The flowers have drooping yellow petals and can grow up to 5 ft in…

Also known as Butcher's broom. A shrub with flat shoots that give the appearance of stiff, spine-tipped leaves. It has been known to enhance blood flow to the brain, legs, and hands, and has been used to relieve constipation and water retention.

Ruscus Aculeatus

Also known as Butcher's broom. A shrub with flat shoots that give the appearance of stiff, spine-tipped…

Also known as Sagittaria sagittifolia. It is a flowering plant that is native to the wetlands of Europe and Asia. The leaves are arrow-shaped and the flowers generally have three white petals with numerous purple stamens.

Arrowhead

Also known as Sagittaria sagittifolia. It is a flowering plant that is native to the wetlands of Europe…

A leaf that resembles an arrow-head in shape.

Saggitate Leaf

A leaf that resembles an arrow-head in shape.

Decorative leaves.

Decorative Leaves

Decorative leaves.

A divider with long leaves.

Leafy Divider

A divider with long leaves.

A leafy divider.

Leafy Divider

A leafy divider.

A brass syringe, which is useful for washing dust off plants.

Brass Syringe

A brass syringe, which is useful for washing dust off plants.

A tool used in washing the dust off plants. It can also wash the eggs of insects off the leaves before they have a chance to hatch.

Fountain Pump

A tool used in washing the dust off plants. It can also wash the eggs of insects off the leaves before…

A bulbous plant with showy flowers and lanceolate leaves.

Tulip

A bulbous plant with showy flowers and lanceolate leaves.