Hydrangea hortensis is the common hydrangea. The flowers vary in color according to the soil in which the plant is grown. The flowers bloom April to September. The plant grows between two and three feet tall.

Hydrangea Hortensis

Hydrangea hortensis is the common hydrangea. The flowers vary in color according to the soil in which…

Hydrangea paniculata grandiflora has white flowers. The flowers are small and star shaped. The flowers bloom in summer and autumn.

Habit and Detached Single Flower of Hydrangea Paniculata Grandiflora

Hydrangea paniculata grandiflora has white flowers. The flowers are small and star shaped. The flowers…

The flowers of hydrolea spinosa are pale blue. The flowers bloom in July. The stem is thorny.

Flowering Stem of Hydrolea Spinosa

The flowers of hydrolea spinosa are pale blue. The flowers bloom in July. The stem is thorny.

Hymenocallis andreana has white flowers. The flowers grow on slender, one flowered scapes. The leaves are pale green. The plant grows one and a half feet tall.

Hymenocallis Andreana

Hymenocallis andreana has white flowers. The flowers grow on slender, one flowered scapes. The leaves…

The common names of hypericum androsaemum are sweet amber and common tutsan. The flowers are large and grow at the ends of the stems. The flowers bloom in summer. The shrub grows to be three feet tall.

Habit and Detached Flower of Hypericum Androsaemum

The common names of hypericum androsaemum are sweet amber and common tutsan. The flowers are large and…

The common names of hypericum perforatum are common hypericum and St. John's wort. The flowers are bright yellow and grow in clusters at the end of the stems. The petals are marked with black dots. The shrub grows between one and three feet tall.

Dehiscing Capsule and Portion and Inflorescence of Hypericum Perforatum

The common names of hypericum perforatum are common hypericum and St. John's wort. The flowers are bright…

Hypoxis erecta flowers are yellow and star shaped. Each scape has four flowers. The leaves are linear and taper to a point.

Scape and Leaf of Hypoxis Erecta

Hypoxis erecta flowers are yellow and star shaped. Each scape has four flowers. The leaves are linear…

The common name of iberis coronaria is rocket candytuft. The flower are pure white. The flowers grow in numerous long, dense heads or spikes at the tops of the stems.

Flowering Branch and Detached Flower of Iberis Coronaria

The common name of iberis coronaria is rocket candytuft. The flower are pure white. The flowers grow…

The common name of iberis sempervirens is evergreen candytuft. The flowers are pure white and bloom in the summer. The plant grows between nine and twelve inches tall.

Flowering Branch of Iberis Sempervirens

The common name of iberis sempervirens is evergreen candytuft. The flowers are pure white and bloom…

The common name of iberis umbellata is the common candytuft. The flowers are usually purple. The flowers bloom in spring and summer. The plant grows between six and twelve inches tall.

Habit and Detached Inflorescence of Iberis Umbellata

The common name of iberis umbellata is the common candytuft. The flowers are usually purple. The flowers…

The flowers are shining white and grow in whorls. The flowers bloom in summer. The plant grows between one and three inches tall.

Flowering Shoot of Illecebrum Verticillatum

The flowers are shining white and grow in whorls. The flowers bloom in summer. The plant grows between…

The flowers are a clear, rich salmon or light flame color. The flowers are large with a light center. The leaves are dark green. It is supposedly a hybrid.

Habit and Detached Flower of Imantophyllum Cyrtanthiflorum

The flowers are a clear, rich salmon or light flame color. The flowers are large with a light center.…

The flowers are a fine, deep orange. The anthers and style of the flowers are bright yellow. The umbel has ten to twenty flowers.

Imantophyllum Miniatum

The flowers are a fine, deep orange. The anthers and style of the flowers are bright yellow. The umbel…

The common name of impatiens balsamina is the common balsam. The flowers are red. The flowers bloom in the summer. The plant grows between one and two feet tall.

Flowering Shoot of Impatiens Balsamina Flore-Pleno

The common name of impatiens balsamina is the common balsam. The flowers are red. The flowers bloom…

This variety of balsam has purple flowers that bloom in August. The plant grows to be ten feet tall. The plant is a hardy annual.

Top of Flowering Branch, Detached Flower, and Young Seed Vessel of Impatiens Roylei

This variety of balsam has purple flowers that bloom in August. The plant grows to be ten feet tall.…

The flowers are a bright rose color and grow on short stalks. The flowers bloom in summer. The plant grows between three and four and a half feet tall.

Flowering Shoot and Detached Single Flower of Incarvillea Olgae

The flowers are a bright rose color and grow on short stalks. The flowers bloom in summer. The plant…

Thrips are very small insects that live in flowers. Thrips gnaw the surface of petals.

Magnified Thrips

Thrips are very small insects that live in flowers. Thrips gnaw the surface of petals.

Large white cabbage butterflies have large wings that are covered with small scales. The mouth is not able to bite. The lower jaws are prolonged and are adapted for sucking honey from flowers.

Large White Cabbage Butterfly

Large white cabbage butterflies have large wings that are covered with small scales. The mouth is not…

Female gipsy moths have large wings that are covered with small scales. The mouth is not able to bite. The lower jaws are prolonged and are adapted for sucking honey from flowers.

Female Gipsy Moth

Female gipsy moths have large wings that are covered with small scales. The mouth is not able to bite.…

The flower heads are yellow. The flowers bloom in July and August. Each stem is hairy with one flower head.

Inula Glandulosa

The flower heads are yellow. The flowers bloom in July and August. Each stem is hairy with one flower…

The flowers are dark purple. The flowers bloom June to September. The plant grows ten feet tall.

Habit and Detached Flower Shoot of Ipomoea Purpurea

The flowers are dark purple. The flowers bloom June to September. The plant grows ten feet tall.

The flowers are dark red. There is one flower per slim stem. The flowers bloom July to September. The plant grows to be six feet tall.

Habit and Detached Flowering Branchlet of Ipomoea Quamoclit

The flowers are dark red. There is one flower per slim stem. The flowers bloom July to September. The…

The flowers are white in the bud, with the limb of a rich lake red. When the flower becomes expanded it becomes a fine, purplish blue color. Each slim stem has three to four flowers.

Habit and Detached Flowering Shoot of Ipomoea Rubro-Caerulea

The flowers are white in the bud, with the limb of a rich lake red. When the flower becomes expanded…

Iris germanica is commonly know as either German or common iris. The flowers are purple with a white claw with brownish veins. The flowers are very fragrant. Each clusters has four to five flowers.

Habit and Detached Flower of Iris Germanica

Iris germanica is commonly know as either German or common iris. The flowers are purple with a white…

Iris guldenstadtiana flowers bloom in June. Each spathe has two or three flowers. The plant grows two feet tall.

Iris Guldenstadtiana

Iris guldenstadtiana flowers bloom in June. Each spathe has two or three flowers. The plant grows two…

Iris iberica flowers grow alone on each stem. The flowers are white or pale lilac.

Flower of Iris Iberica

Iris iberica flowers grow alone on each stem. The flowers are white or pale lilac.

The common name of iris laevigata is Japanese Iris. The flowers are bright purple and grow alone on each stem. The leaves are pale green, thin, and weak.

Iris Laevigata Flore-Pleno

The common name of iris laevigata is Japanese Iris. The flowers are bright purple and grow alone on…

Iris pumila is a small, dwarf variety. The flowers are a bright, lilac purple color.

Iris Pumila

Iris pumila is a small, dwarf variety. The flowers are a bright, lilac purple color.

Iris susiana flowers grow alone of each stem. The flowers are a whitish lilac with dense, fine brown black spots.

Iris Susiana

Iris susiana flowers grow alone of each stem. The flowers are a whitish lilac with dense, fine brown…

Iris versicolor flowers are redish purple. The flowers grow in clusters. This variety is common in North America.

Habit and Detached Portion of Inflorescence of Iris Versicolor

Iris versicolor flowers are redish purple. The flowers grow in clusters. This variety is common in North…

Each spathe of iris caucasica has one flower. The flowers are a pale yellow and have no scent. Each stem has one to three flowers.

Iris Caucasica

Each spathe of iris caucasica has one flower. The flowers are a pale yellow and have no scent. Each…

Iris histrio flowers are a lilac purple color. Each spathe has one flower.

Flowers and Leaves of Iris Histrio

Iris histrio flowers are a lilac purple color. Each spathe has one flower.

Iris persica flowers are violet scented. The flowers bloom in February and March. The flowers are a pale, yellowish lilac with a bright yellow, beardless keel.

Iris Persica

Iris persica flowers are violet scented. The flowers bloom in February and March. The flowers are a…

The stem of iris vulgare is one to two feet high with one or two flowers. The flowers are purple and erect.

Habit and Detached Flower of Iris Vulgare

The stem of iris vulgare is one to two feet high with one or two flowers. The flowers are purple and…

The flowers of isopyrum thalictroides are small and white. The sepals are blunt. The height of the plant is between nine and fifteen inches.

Habit and Detached Leaflet of Isopyrum Thalictroides

The flowers of isopyrum thalictroides are small and white. The sepals are blunt. The height of the plant…

The flowers are a beautiful, deep blue. The flowers are two inches in diameter. The plant grows one and a half feet tall.

Habit, Raceme, and Detached Flower of Ixiolirion Tataricum Brachyantherum

The flowers are a beautiful, deep blue. The flowers are two inches in diameter. The plant grows one…

The common name of jasminum is jasmine. The floridum variety has yellow flowers a half inch in diameter. It is a hardy, ornamental shrub.

Flowering Branchlet of Jasminum Floridum

The common name of jasminum is jasmine. The floridum variety has yellow flowers a half inch in diameter.…

The common name of jasminum is jasmine. The grandiflorum variety has white flowers that are reddish underneath. The flowers bloom June to October.

Flowering Spray of Jasminum Grandiflorum

The common name of jasminum is jasmine. The grandiflorum variety has white flowers that are reddish…

Jasmine is the common name of jasminum. The nudiflorum variety has yellow flowers. The flowers grow opposite each other, with one on each stem.

Flowering Branch of Jasminum Nudiflorum

Jasmine is the common name of jasminum. The nudiflorum variety has yellow flowers. The flowers grow…

The common name of jasminum officinale is common white jessamine. The flowers are white and fragrant. The flowers bloom June to September.

Small Inflorescence of Jasminum Officinale

The common name of jasminum officinale is common white jessamine. The flowers are white and fragrant.…

Jasminum officinale affine differs from common white jessamine because it has larger flowers and a more copious inflorescence. This variety is probably of garden origin.

Inflorescence of Jasminum Officinale Affine

Jasminum officinale affine differs from common white jessamine because it has larger flowers and a more…

The common name of juglans cinerea is butter nut. The tree is a variety of walnut. The flowers are a greenish color. The fruit are oblong with a tapered tip. The tree grows between thirty and sixty feet tall.

Female Flowers, Fruits, and Male Catkins of Juglans Cinerea

The common name of juglans cinerea is butter nut. The tree is a variety of walnut. The flowers are a…

The common name of kalmia latifolia is calico bush. The flowers range from rose colored to white. The shrub grows between three and ten feet tall.

Flowering Branch of Kalmia Latifolia

The common name of kalmia latifolia is calico bush. The flowers range from rose colored to white. The…

Karatas humilis flowers are crimson. The flowers grow in central tufts surronded by leaves. The height of the shrub is one foot.

Karatas Humilis

Karatas humilis flowers are crimson. The flowers grow in central tufts surronded by leaves. The height…

Karatas scheremetiewi flowers are white or blue. The leave are green. The floral leaves are bright red and are shorter than the ordinary leaves.

Karatas Scheremetiewi

Karatas scheremetiewi flowers are white or blue. The leave are green. The floral leaves are bright red…

The flowers of kerria japonica are orange yellow. The flowers grow alone at the end of the stems. The leaves are bright green and shining above and paler and slightly hairy beneath.

Flowering Branchlet of Kerria Japonica Flore-Pleno

The flowers of kerria japonica are orange yellow. The flowers grow alone at the end of the stems. The…

Koellikeria argyrostigma flowers are white or cream colored spotted with red. The flowers bloom in the summer. The leaves are downy, deep rich velvety green with scattered, white spots.

Habit and Detached Single Flower of Koellikeria Argyrostigma

Koellikeria argyrostigma flowers are white or cream colored spotted with red. The flowers bloom in the…

The flowers of koelreuteria paniculata are yellow. There are many flowers on each branch. The leaves are deeply toothed.

Leaf and Portion of Inflorescence of Koelreuteria Paniculata

The flowers of koelreuteria paniculata are yellow. There are many flowers on each branch. The leaves…

The common name of laburnum alpinum is Scotch Laburnum. The flowers are yellow and bloom in June. The shrub grows between fifteen and twenty feet tall.

Flowering Branchlet of Laburnum Alpinum

The common name of laburnum alpinum is Scotch Laburnum. The flowers are yellow and bloom in June. The…

The flowers of laelia albida are very fragrant. The sepals and petals are a mealy white. The lips is white or pale pink, streaked in the center with lines of yellow.

Flower of Laelia Albida

The flowers of laelia albida are very fragrant. The sepals and petals are a mealy white. The lips is…

The flowers of laelia anceps are very fragrant and are two to four inches across. The sepals and petals are a rose lilac color. The lip is deep purple shaded with lilac. The scape has three to six flowers.

Flower of Laelia Anceps

The flowers of laelia anceps are very fragrant and are two to four inches across. The sepals and petals…

Lagenaria vulgaris is commonly known as the bottle gourd. The flowers are large and white. The fruit is shaped like a bottle. The fruit is a pale yellow color when ripe.

Flowering Branch and Fruit of Lagenaria Vulgaris

Lagenaria vulgaris is commonly known as the bottle gourd. The flowers are large and white. The fruit…

Lagurus ovatus flowers are a woolly texture. The flowers bloom June to September.

Lagurus Ovatus

Lagurus ovatus flowers are a woolly texture. The flowers bloom June to September.

Hybrid forms of lantana are employed for greenhouse decoration and for bedding out purposes. Flowers are red, golden, or white.

Inflorescence and Detached Flower of Hybrid Lantana

Hybrid forms of lantana are employed for greenhouse decoration and for bedding out purposes. Flowers…

Lapageria rosea flowers are a rich, rosy crimson. The flowers usually grow alone on each stem.

Lapageria Rosea

Lapageria rosea flowers are a rich, rosy crimson. The flowers usually grow alone on each stem.

The common name of lathyrus odoratus is sweet pea. The flowers are very fragrant and come in various colors. Each penduncle has two or three flowers.

Portion of Flowering Stem of Lathyrus Odoratus

The common name of lathyrus odoratus is sweet pea. The flowers are very fragrant and come in various…

The flowers of lathyrus sylvestris are red and variegated with pale crimson, violet, and tints of green. Each penduncle has three to eight flowers.

Portion of Flowering Stem of Lathyrus Sylvestris

The flowers of lathyrus sylvestris are red and variegated with pale crimson, violet, and tints of green.…

The common name of laurus nobilis is common laurel or sweet bay tree. The flowers are yellow and inconspicuous. The berries are a very dark purple and become ripe in October.

Fruiting Twig, Inflorescence, and Fruits of Laurus Nobilis

The common name of laurus nobilis is common laurel or sweet bay tree. The flowers are yellow and inconspicuous.…

The common name of lavatera arborea is tree mallow. The flowers are pale purple Variegata is a showy, garden form with variegated leaves.

Lavatera Arborea Variegata

The common name of lavatera arborea is tree mallow. The flowers are pale purple Variegata is a showy,…

Lavatera trimestris flowers are rose colored. The flowers bloom in the summer. The plant grows between three and six feet.

Flowering Branch of Lavatera Trimestris

Lavatera trimestris flowers are rose colored. The flowers bloom in the summer. The plant grows between…