183 illustrations of flowers and shrubs including: harebell, hawkweed, heartsease, heath, hemlock, hemp, hibiscus, holly, honeysuckle, hop, horehound, horsetail, houseleek, huckleberry, hydrangea, and hyssop

Plant species belonging to the Zinnia, a genus of over 20 species.

Zinnia Haageana

Plant species belonging to the Zinnia, a genus of over 20 species.

Leaves smaller; flowers individually small, in terminal spike-like clusters.

Habenaria

Leaves smaller; flowers individually small, in terminal spike-like clusters.

The common name of habernaria bifolia chlorantha is butterfly orchis. The flower are white and are about half the length of the stem. The flowers bloom in June.

Flower of Habenaria Bifolia Chlorantha

The common name of habernaria bifolia chlorantha is butterfly orchis. The flower are white and are about…

"Glandular hair from the petiole of Pelargonium zonale. e, secretion from the globular gland on which it rests." -Stevens, 1916

Hair, P. Zonale

"Glandular hair from the petiole of Pelargonium zonale. e, secretion from the globular gland on which…

"Hakea acicularis. 1. a couple of flowers; 2. a flower magnified; 3. the pistil; 4. a fruit; 5. a seed; 6. half an embryo." -Lindley, 1853

Silky Hakea

"Hakea acicularis. 1. a couple of flowers; 2. a flower magnified; 3. the pistil; 4. a fruit; 5. a seed;…

The common name of halesia is silver bell or snowdrop tree. Halesia hispida flowers are white. The fruit are covered with stiff and dense hairs.

Flowering Branch and Detached Flowers of Halesia Hispida

The common name of halesia is silver bell or snowdrop tree. Halesia hispida flowers are white. The fruit…

Hand flower is the common name of chiranthodendron platanoides. The bright red stamens resemble the fingers of a human hand. The other common names are mano de mico, monkey's hand, and devil's hand.

Hand Flower

Hand flower is the common name of chiranthodendron platanoides. The bright red stamens resemble the…

Harebells, otherwise known as bluebells are common herbaceous perennials.

Harebell

Harebells, otherwise known as bluebells are common herbaceous perennials.

Flower of a Camanula or Harebell, with a campanulate or bell-shaped corolla.

Harebell

Flower of a Camanula or Harebell, with a campanulate or bell-shaped corolla.

Of the Bellflower family (Campanulaceae), the harebell (Campanula rotundifolia).

Harebell

Of the Bellflower family (Campanulaceae), the harebell (Campanula rotundifolia).

A common European under—shrub. Generally low spreading, and much branched, bearing, pink papilionaceous flowers.

Rest Harrow

A common European under—shrub. Generally low spreading, and much branched, bearing, pink papilionaceous…

Of the Composite family (Compositae), the Allegheny hawkweed (Hieracium paniculatum).

Allegheny Hawkweed

Of the Composite family (Compositae), the Allegheny hawkweed (Hieracium paniculatum).

Of the Composite family (Compositae), the Canada hawkweed (Hieracium Canadense).

Canada Hawkweed

Of the Composite family (Compositae), the Canada hawkweed (Hieracium Canadense).

Also known as pilosella aurantiaca, or Devil's Paintbrush. It is native to the alpine regions of central and southern Europe. It is considered a noxious weed.

Orange Hawkweed

Also known as pilosella aurantiaca, or Devil's Paintbrush. It is native to the alpine regions of central…

Of the Composite family (Compositae), the rough hawkweed (Hieracium scabrum).

Rough Hawkweed

Of the Composite family (Compositae), the rough hawkweed (Hieracium scabrum).

Of the Composite family (Compositae), the tawny hawkweed (Hieracium aurantiacum).

Tawny Hawkweed

Of the Composite family (Compositae), the tawny hawkweed (Hieracium aurantiacum).

The fruits of hawthorn are pomes with a structure similar to apple. Illustrated is one of the large fruited forms.

Pomes of Hawthorn

The fruits of hawthorn are pomes with a structure similar to apple. Illustrated is one of the large…

A head is a flower cluster with a short body, and without pedicles to the blossoms.

Head

A head is a flower cluster with a short body, and without pedicles to the blossoms.

The head of a flower.

Head

The head of a flower.

A species of plants having heart shaped corolla.

Bleeding Heart

A species of plants having heart shaped corolla.

"Viola tricolor. A, stamens and pistil; B, pistil with stamens removed; C, pod split open." -Bergen, 1896

Heartsease

"Viola tricolor. A, stamens and pistil; B, pistil with stamens removed; C, pod split open." -Bergen,…

Heartsease (Viola tricolor) is a common European wild flower, growing as an annual or short-lived perennial. It has been introduced into North America, where it has spread widely, and is known as the Johnny Jump Up (though this name is also applied to similar species such as the Yellow Pansy). It is the progenitor of the cultivated Pansy, and is therefore sometimes called Wild Pansy; before the cultivated Pansies were developed, "Pansy" was an alternative name for the wild form.

Heartsease

Heartsease (Viola tricolor) is a common European wild flower, growing as an annual or short-lived perennial.…

"Erica cinerea. The English form of a name given in most Teutonic dialects to the common ling or heather, but now applied to all species of Erica, an extensive genus of monopetalous plants, belonging to the order Ericaceae. The heaths are evergreen shrubs, with small narrow leaves, in whorls usually set rather thickly on the shoots; the persistent flowers have 4 sepals, and a 4-cleft campanulate or tubular corolla, in many species more or less ventricose or inflated." — Encyclopediia Britannica, 1893

Heath

"Erica cinerea. The English form of a name given in most Teutonic dialects to the common ling or heather,…

"Calluna Vulgaris. The English form of a name given in most Teutonic dialects to the common ling or heather, but now applied to all species of Erica, an extensive genus of monopetalous plants, belonging to the order Ericaceae. The heaths are evergreen shrubs, with small narrow leaves, in whorls usually set rather thickly on the shoots; the persistent flowers have 4 sepals, and a 4-cleft campanulate or tubular corolla, in many species more or less ventricose or inflated." — Encyclopediia Britannica, 1893

Heath

"Calluna Vulgaris. The English form of a name given in most Teutonic dialects to the common ling or…

The flowering branch of the Common Heath (Epacris impressa), a plant in the Ericaceae family of heaths.

Common Heath

The flowering branch of the Common Heath (Epacris impressa), a plant in the Ericaceae family of heaths.

The flower of the Common Heath (Epacris impressa), a plant in the Ericaceae family of heaths.

Common Heath

The flower of the Common Heath (Epacris impressa), a plant in the Ericaceae family of heaths.

The Bell Heather (Erica cinerea) is a plant in the Ericaceae family of heaths.

Bell Heather

The Bell Heather (Erica cinerea) is a plant in the Ericaceae family of heaths.

The magnified flower of the Bell Heather (Erica cinerea) is a plant in the Ericaceae family of heaths.

Bell Heather

The magnified flower of the Bell Heather (Erica cinerea) is a plant in the Ericaceae family of heaths.

Hedera (English name ivy, plural ivies) is a genus of 15 species of climbing or ground-creeping evergreen woody plants in the family Araliaceae, native to the Atlantic Islands, western, central and southern Europe, northwestern Africa and across central-southern Asia east to Japan. On suitable surfaces (trees and rock faces), they are able to climb to at least 25–30 metres above the basal ground level.

Hedera colchica

Hedera (English name ivy, plural ivies) is a genus of 15 species of climbing or ground-creeping evergreen…

The leaves of hedera helix algeriensis variegata ivy have yellowish green leaves. This is a rapid growing variety.

Hedera Helix Algeriensis Variegata

The leaves of hedera helix algeriensis variegata ivy have yellowish green leaves. This is a rapid growing…

Hedera helix arborescens aurea maculata is the tree form of the common ivy. There are golden and silver sub varieties.

Hedera Helix Arborescens Aurea Maculata

Hedera helix arborescens aurea maculata is the tree form of the common ivy. There are golden and silver…

Hedera helix conglomerata is an ivy with marked, slow growing, erect variety. The leaves are small and wavy.

Hedera Helix Conglomerata

Hedera helix conglomerata is an ivy with marked, slow growing, erect variety. The leaves are small and…

Hedera helix dentata is a form of ivy with less glossy leaves. The leaves are not distinctly toothed.

Hedera Helix Dentata

Hedera helix dentata is a form of ivy with less glossy leaves. The leaves are not distinctly toothed.

Hedera helix digitata is a blackish green ivy with whitish veins. This ivy is a vigorous grower.

Hedera Helix Digitata

Hedera helix digitata is a blackish green ivy with whitish veins. This ivy is a vigorous grower.

The hedera helix donerailensis form of ivy is a pretty, small leaved form. The leaves have a dull, purple brown color in winter.

Hedera Helix Donerailensis

The hedera helix donerailensis form of ivy is a pretty, small leaved form. The leaves have a dull, purple…

Hedera helix lobata major is an ivy with three to five lobed leaves. The leaves are a deep, glossy green.

Hedera Helix Lobata Major

Hedera helix lobata major is an ivy with three to five lobed leaves. The leaves are a deep, glossy green.

Hedera helix lucida is an ivy with triangular, glossy leaves. This ivy is a fast grower.

Hedera Helix Lucida

Hedera helix lucida is an ivy with triangular, glossy leaves. This ivy is a fast grower.

Hedera helix marmorata major is an ivy with large leaves. The leaves have irregular blotches of a creamy white color.

Hedera Helix Marmorata Major

Hedera helix marmorata major is an ivy with large leaves. The leaves have irregular blotches of a creamy…

Hedera Helix Raegneria is an ivy with large, dark green, leathery leaves. It is a tree ivy.

Hedera Helix Raegneriana

Hedera Helix Raegneria is an ivy with large, dark green, leathery leaves. It is a tree ivy.

Hedera Helix Variegata is an ivy with light green leaves margined and blotched with creamy white. It is not as quick a grower as other ivies.

Hedera Helix Variegata

Hedera Helix Variegata is an ivy with light green leaves margined and blotched with creamy white. It…

"Hedycarya dentata. 1. male flower; 2. female ditto; 3. section of carpel; 4. ripe fruit." -Lindley, 1853

Hedycarya

"Hedycarya dentata. 1. male flower; 2. female ditto; 3. section of carpel; 4. ripe fruit." -Lindley,…

The common name of hedychium is Indian Garden Flower. The gardneranium variety has large, yellow, fragrant flowers. The leaves are stem clasping and grow in two rows. The plant grows between three and five feet tall.

Habit and Detached Flower Spike of Hedychium Gardnerianum

The common name of hedychium is Indian Garden Flower. The gardneranium variety has large, yellow, fragrant…

The common name of helianthemum guttatum is sun rose. The guttatum variety has yellow flowers with red spots at the base of each petal. The shrub grows to be six inches tall.

Flowering Branch of Helianthemum Guttatum

The common name of helianthemum guttatum is sun rose. The guttatum variety has yellow flowers with red…

The flowers of helicodiceros crinitus are a dark, purple brown color. The spathe is brown with a hairy inside.

Habit and Young Unopened Spathe of Helicodiceros Crinitus

The flowers of helicodiceros crinitus are a dark, purple brown color. The spathe is brown with a hairy…

"Part of the inflorescence of Heliconia angustifolia; a, stamens and pistil, the surrounding parts being removed." -Lindley, 1853

Heliconia

"Part of the inflorescence of Heliconia angustifolia; a, stamens and pistil, the surrounding parts being…

The flowers have heliconia bicolor at white and tipped with a greenish color. The ovaries and spathes of the flower are scarlet. The leaves have a gracefully arching shape.

Habit and Separate Inflorescence of Heliconia Bicolor

The flowers have heliconia bicolor at white and tipped with a greenish color. The ovaries and spathes…

Heliconia bihai flowers are red or orange. The flowers bloom in July and August. The plant grows to be twelve feet tall.

Heliconia Bihai

Heliconia bihai flowers are red or orange. The flowers bloom in July and August. The plant grows to…

Heliophila pilosa incisa has blue flowers. The leaves are linear and divide in three parts at the point. The lobes are also linear.

Habit and Detached Single Flower or Heliophila Pilosa Incisa

Heliophila pilosa incisa has blue flowers. The leaves are linear and divide in three parts at the point.…

Heliotrope is a genus of plants, including both annual and perennial species.

Heliotrope

Heliotrope is a genus of plants, including both annual and perennial species.

This plant gives off a strong fragrance, commonly used in medicine.

Garden Heliotrope

This plant gives off a strong fragrance, commonly used in medicine.

The heliotropes (Heliotropium) is a genus of plants in the family Boraginaceae with 250 to 300 species. The name "heliotrope" derives from the fact that these plants turn their leaves to the sun. Helios is Greek for "sun", tropein means "to turn". The old English name "turnsole" has the same etymology.

Heliotropium

The heliotropes (Heliotropium) is a genus of plants in the family Boraginaceae with 250 to 300 species.…

The flowers heads of helipterum humboldtianum are bright yellow. There are numerous flower heads growing in clusters at the end of the stems. The plant grows between one and two feet tall.

Habit and Detached Inflorescence of Helipterum Humboldtianum

The flowers heads of helipterum humboldtianum are bright yellow. There are numerous flower heads growing…

Helleborus caucasicus punctatus is a garden hybrid of hellebore. The flowers are pale green with rosy dotted sepals.

Habit and Detached Single Flower of Hellebore (Helleborus Caucausicus Punctatus)

Helleborus caucasicus punctatus is a garden hybrid of hellebore. The flowers are pale green with rosy…

Helleborus niger altifolius is usually known as major, sometimes as maximus. The flowers are very large, about four inches across.

Helleborus Niger Altifolius

Helleborus niger altifolius is usually known as major, sometimes as maximus. The flowers are very large,…

Helleborus Olympicus flowers are a purplish color. The flowers bloom in spring. Each stem has two or three flowers. The plant grows two feet tall.

Habit and Fully and Partially Expanded Flowers of Helleborus Olympicus

Helleborus Olympicus flowers are a purplish color. The flowers bloom in spring. Each stem has two or…

The common name of hemerocallis is day lily. The middendorfii variety has deep, golden yellow flowers. There are three to four flowers on each head at the end of the stem.

Habit and Detached Head of Flowers of Hemerocallis Middendorfii

The common name of hemerocallis is day lily. The middendorfii variety has deep, golden yellow flowers.…

Poison Hemlock and water hemlock are herbs.

Hemlock

Poison Hemlock and water hemlock are herbs.

Also know as cicuta maculata. This plant is native to temperate areas of the Northern Hemisphere, and is identified by having small green or white flowers hanging in an umbrella shape. It is considered one of America's most toxic plants to humans.

American Water Hemlock

Also know as cicuta maculata. This plant is native to temperate areas of the Northern Hemisphere, and…

Northern Water Hemlock is a species of Cicuta, native to northern and central Europe, northern Asia and northwestern North America. It is a perennial herbaceous plant which grows up to 1–2 m tall. The stems are smooth, branching, swollen at the base, purple-striped, and hollow except for partitions at the junction of the leaves and stem. In cross section the stems have one flat side and the other sides are rounded. The leaves are alternate, tripinnate, only coarsely toothed, unlike the ferny, lacy leaves found in many other members of the family Apiaceae. The flowers are small, white and clustered in umbrella shaped inflorescences typical of the family. The many flowered umbellets have unequal pedicels that range from 5 to 11 cm long during fruiting. An oily, yellow liquid oozes from cuts to the stems and roots.

Northern Water Hemlock

Northern Water Hemlock is a species of Cicuta, native to northern and central Europe, northern Asia…

Part of stem, leaf and umbel of Poison-Hemlock.

Poison Hemlock

Part of stem, leaf and umbel of Poison-Hemlock.