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

Umbel of Poison-Hemlock.

Poison Hemlock

Umbel of Poison-Hemlock.

Magnified flower of Poison-Hemlock.

Poison Hemlock

Magnified flower of Poison-Hemlock.

Magnified fruit of Poison-Hemlock.

Poison Hemlock

Magnified fruit of Poison-Hemlock.

Magnified fruit of Poison-Hemlock, cut in half.

Poison Hemlock

Magnified fruit of Poison-Hemlock, cut in half.

Of the Parsley family (Umbelliferae), the poison hemlock (Conium maculatum).

Poison Hemlock

Of the Parsley family (Umbelliferae), the poison hemlock (Conium maculatum).

Hemlock is a genus of poisonous plants. It has a tall, hollow stem and white flowers.

Poisonous Hemlock

Hemlock is a genus of poisonous plants. It has a tall, hollow stem and white flowers.

An illustration of the common hemp plant. Hemp (from Old English hænep) is the common name for plants of the entire genus Cannabis, although the term is often used to refer only to Cannabis strains cultivated for industrial (non-drug) use.

Hemp

An illustration of the common hemp plant. Hemp (from Old English hænep) is the common name for…

"Hemp adapts itself to diversities of climate, and is cultivated equally under the burning sun of the tropics, and in the northern parts of Russia." -Lupton

Hemp Plant

"Hemp adapts itself to diversities of climate, and is cultivated equally under the burning sun of the…

Of the Dogbane family (Apocynaceae), the Indian hemp (Apocynum cannabinum).

Indian Hemp

Of the Dogbane family (Apocynaceae), the Indian hemp (Apocynum cannabinum).

Depicted is a Japanese shrub that shares close resemblance to other plants in this genus.

Spiraea Henryi

Depicted is a Japanese shrub that shares close resemblance to other plants in this genus.

An illustration of liverwort (Hepatica): a, Thalloid stem with female branches; b, Thalloid stem with male branches. Hepatica is a genus of herbaceous perennial plants belonging to the buttercup family, Ranunculaceae. A native of central and northern Europe, Asia and northeastern North America, Hepatica is sometimes called liverleaf or "liverwort". It should not be confused with liverworts, which may also be called "Hepaticae". A few botanists include Hepatica within a wider interpretation of Anemone, as Anemone hepatica.

Hepatica

An illustration of liverwort (Hepatica): a, Thalloid stem with female branches; b, Thalloid stem with…

The common names of heracleum are cow parsley and cow parsnip. The sibiricum variety has yellowish flowers. The flowers bloom in the summer. The plant grows between five and six feet tall.

Heracleum Sibiricum

The common names of heracleum are cow parsley and cow parsnip. The sibiricum variety has yellowish flowers.…

The common names of heracleum are cow parsley and cow parsnip. The sibiricum variety has yellowish flowers. The umbels are large.

Umbel of Heracleum Sibiricum

The common names of heracleum are cow parsley and cow parsnip. The sibiricum variety has yellowish flowers.…

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,…

"Geranium Robertianum. 1. its stamens; 2. its ovary; 3. a section of its seed." -Lindley, 1853

Herb Robert

"Geranium Robertianum. 1. its stamens; 2. its ovary; 3. a section of its seed." -Lindley, 1853

Calceolaria is commonly known as Slipperwort. The herbaceous section blooms in May.

Herbaceous Calceolaria

Calceolaria is commonly known as Slipperwort. The herbaceous section blooms in May.

Illustrated is a herbarium sheet of <i>rubus villosus</i>.

Herbarium Sheet

Illustrated is a herbarium sheet of rubus villosus.

Stem finely pubescent, flowers 3-4 mm long.

Herpestris

Stem finely pubescent, flowers 3-4 mm long.

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…

Leaves entire; veins of leaf nearly parallel.

Heteranthera

Leaves entire; veins of leaf nearly parallel.

Flowers solitary; leaves small, less than 5 cm long.

Heteranthera

Flowers solitary; leaves small, less than 5 cm long.

A varying leafed Fescue species.

Festuca Heterophylla

A varying leafed Fescue species.

"4. flower of Heterostemma acuminatum; 5. one of its anthers; 6. its pollen masses." -Lindley, 1853

Heterostemma

"4. flower of Heterostemma acuminatum; 5. one of its anthers; 6. its pollen masses." -Lindley, 1853

The common name of heuchera is alum root. The glabra variety has small white flowers. The flowers bloom in summer. The plant grows to be one foot tall.

Heuchera Glabra

The common name of heuchera is alum root. The glabra variety has small white flowers. The flowers bloom…

A species of Filipendula; a perennial flowering plant belonging to the Rosaceae family.

Filipendula Hexapetala

A species of Filipendula; a perennial flowering plant belonging to the Rosaceae family.

A flowering plant belonging to the Lardizabalaceae genus.

Stauntonia Hexaphylla

A flowering plant belonging to the Lardizabalaceae genus.

Hibbertia perfoliata flowers are pale yellow. The flowers bloom in summer. The leaves are edged with minute, distant teeth.

Flowering Branch of Hibbertia Perfoliata

Hibbertia perfoliata flowers are pale yellow. The flowers bloom in summer. The leaves are edged with…

Base of petiole not expanded; plants large, 5 dm tall or taller.

Hibiscus

Base of petiole not expanded; plants large, 5 dm tall or taller.

Plant large, over 5dm tall; flowers large, white, pink, or purplish.

Hibiscus

Plant large, over 5dm tall; flowers large, white, pink, or purplish.

Large leaves, over 5 cm broad; flowers large, over 5cm across.

Hibiscus

Large leaves, over 5 cm broad; flowers large, over 5cm across.

Hibiscus coccineus flowers are bright scarlet. The flowers bloom in July and August. The shrubs grow between four and eight feet tall. These shrubs are native to the marshy areas of Florida and Georgia.

Flowering Branch of Hibiscus Coccineus

Hibiscus coccineus flowers are bright scarlet. The flowers bloom in July and August. The shrubs grow…

Hibiscus rosa-sinensis flowers vary in color. The flowers are large and are single, semi, or wholly double. The flowers bloom in the summer. The shrub grows between ten and fifteen feet tall.

Flowering Branch of Hibiscus Rosa-Sinensis

Hibiscus rosa-sinensis flowers vary in color. The flowers are large and are single, semi, or wholly…

The flowers of hibiscus roseus are rose colored. The flowers are large and grow alone on the stems. The shrub grows to be three feet tall.

Flowering Branch of Hibiscus Roseus

The flowers of hibiscus roseus are rose colored. The flowers are large and grow alone on the stems.…

The flowers of hibiscus syriacus vary in color. The flowers are large and grow single or double on the stem. The flowers bloom in August. The shrub grows six feet tall.

Flowering Branch of Hibiscus Syriacus

The flowers of hibiscus syriacus vary in color. The flowers are large and grow single or double on the…

The common name of hibiscus trionum is bladder ketmia. The flowers are yellow with a purple center. The flowers bloom in summer. The shrub grows two feet tall.

Flowering Branch of Hibiscus Trionum

The common name of hibiscus trionum is bladder ketmia. The flowers are yellow with a purple center.…

"When the ovary is composed of several carpels, the carpels are arranged with the midrib placed outwardly, and the margins turned inward toward the center, as seen in the transverse section of the Hibiscus, which is composed of five carpels, with their margins meeting in the center, forming a central placenta, to which the seeds are attached."

Section of Hibiscus

"When the ovary is composed of several carpels, the carpels are arranged with the midrib placed outwardly,…

A plant species native to Brazil.

Vriesia Hieroglyphica

A plant species native to Brazil.

"Hippocratea Arnottiana. 1. a flower; 2. a cross section of the ovary; 3. ripe fruit." -Lindley, 1853

Hippocratea

"Hippocratea Arnottiana. 1. a flower; 2. a cross section of the ovary; 3. ripe fruit." -Lindley, 1853

This shrub bears fruit like berries, belonging to the Family Ericaceae.

Vaccinium Hirsutum

This shrub bears fruit like berries, belonging to the Family Ericaceae.

Plant belonging to the botanical family; Tricyrtis. Native t east Asia, China, and Japan.

Tricyrtis Hirta

Plant belonging to the botanical family; Tricyrtis. Native t east Asia, China, and Japan.

Of the Honeysuckle family (Caprifoliaceae), the hobble-bush (Viburnum alnifolium).

Hobble-Bush

Of the Honeysuckle family (Caprifoliaceae), the hobble-bush (Viburnum alnifolium).

The flowers of holboellia latifolia are purple or greenish. The flowers are very fragrant. The flowers bloom in March. The shrub grows up to twenty feet tall.

Flowering Branch and Detached Female Flowers of Holboellia Latifolia

The flowers of holboellia latifolia are purple or greenish. The flowers are very fragrant. The flowers…

"A species of the genus Ilex, which contains about 175 species distributed throughout the world. They are ornamental shrubs with evergreen or deciduous and sometimes spiny leaves and black, red or yellow berries, which remain on the shrubs until the following spring." &mdash; Beach, 1909

Holly

"A species of the genus Ilex, which contains about 175 species distributed throughout the world. They…

Ilex aquifolium (Holly, or European Holly to distinguish it from related species) is a species of holly native to western and southern Europe, northwest Africa and southwest Asia

Holly

Ilex aquifolium (Holly, or European Holly to distinguish it from related species) is a species of holly…

Hollyhock rust on the under side of a leaf.

Hollyhock Rust

Hollyhock rust on the under side of a leaf.

Hollyhock is an autumnal flower. Hollyhocks reach a height of eight or ten feet. The flowers grow three feet above the ground.

Flowering Stem of Hollyhock

Hollyhock is an autumnal flower. Hollyhocks reach a height of eight or ten feet. The flowers grow three…

Holy Ghost Flower, or Dove Flower, is the common name of peristeria elata. The flowers are sweet scented and about one and a half inches across. The flowers spikes reach three feet or more in height.

Holy Ghost Flower

Holy Ghost Flower, or Dove Flower, is the common name of peristeria elata. The flowers are sweet scented…

The Holywood or Lignum Vitae (Guaiacum sanctum) is a plant in the Zygophyllaceae family of caltrops. It grows in Southern Florida and Central America.

Holywood

The Holywood or Lignum Vitae (Guaiacum sanctum) is a plant in the Zygophyllaceae family of caltrops.…

Tartarean Honeysuckle, with three accessory buds in each axil

Honeysuckle

Tartarean Honeysuckle, with three accessory buds in each axil

The honeysuckle is a flowering plant of the heath family.

Honeysuckle

The honeysuckle is a flowering plant of the heath family.

Branch of a Honeysuckle, with connate-perfoliate leaves.

Honeysuckle Stem

Branch of a Honeysuckle, with connate-perfoliate leaves.

Of the Honeysuckle family (Caprifoliaceae), the bush honeysuckle (Diervilla Lonicera).

Bush Honeysuckle

Of the Honeysuckle family (Caprifoliaceae), the bush honeysuckle (Diervilla Lonicera).

Of the Honeysuckle family (Caprifoliaceae), the fly-honeysuckle (Lonicera canadensis).

Fly-Honeysuckle

Of the Honeysuckle family (Caprifoliaceae), the fly-honeysuckle (Lonicera canadensis).

Of the Honeysuckle family (Caprifoliaceae), the trumpet honeysuckle (Lonicera sempervirens).

Trumpet Honeysuckle

Of the Honeysuckle family (Caprifoliaceae), the trumpet honeysuckle (Lonicera sempervirens).

Of the Heath family (Ericaceae), the white swamp honeysuckle (Rhododendron viscosum).

White Swamp Honeysuckle

Of the Heath family (Ericaceae), the white swamp honeysuckle (Rhododendron viscosum).

Hoop petticoat is the common name of narcissus bulbocodium. The flowers are bright yellow. The flowers bloom in April and May.

Hoop Petticoat

Hoop petticoat is the common name of narcissus bulbocodium. The flowers are bright yellow. The flowers…

"Male (A) and Female (B) Inflorescence of the Hop." &mdash; Encyclopedia Britannica, 1893

Hop

"Male (A) and Female (B) Inflorescence of the Hop." — Encyclopedia Britannica, 1893

"Fruit of Hop." &mdash; Encyclopedia Britannica, 1893

Hop

"Fruit of Hop." — Encyclopedia Britannica, 1893

"Twining stem of hop." -Bergen, 1896

Hop

"Twining stem of hop." -Bergen, 1896

"Humulus Lupulus. 1. male flower; 2. female; 3. section of ovary; 4. ripe fruit; 5. section of it, showing embryo; 6. a grain of lupuline." -Lindley, 1853

Common Hop

"Humulus Lupulus. 1. male flower; 2. female; 3. section of ovary; 4. ripe fruit; 5. section of it, showing…