574 illustrations of flowers and shrubs including: acacia, acanthus, adder's tongue, agave, alfalfa, alisma, allspice, aloe, anacharis, aristolochia, arnica, arrowhead, arrowroot, artichoke, asparagus, aster, azalea, and azolla

<i>Agave angustissima</i> is a closely allied form with agave schidigera. The leaves are often narrow and reddened. The flowers are stalked.

Agave Angustissima

Agave angustissima is a closely allied form with agave schidigera. The leaves are often narrow and reddened.…

The trunk of <i>Agave attenuate</i> is four to five feet. The trunk is sometimes prostrate.

Agave Attenuata

The trunk of Agave attenuate is four to five feet. The trunk is sometimes prostrate.

The inflorescence of agave attenuata is five to ten feet long. The flowers are paired, about two inches.

Flowers of Agave Attenuata

The inflorescence of agave attenuata is five to ten feet long. The flowers are paired, about two inches.

The flowers of agave celsiana are purplish brown and two inches long. The leafless stalk is four feet tall with a rosette formation of leaves at the bottom.

Agave Celsiana Flower

The flowers of agave celsiana are purplish brown and two inches long. The leafless stalk is four feet…

The flower of the agave densiflora is a yellowish red color and about two inches long. Thirty to forty leaves make up a stemless rosette at the base of the plant. The leaves are bright green when mature.

Agave Densiflora Flower

The flower of the agave densiflora is a yellowish red color and about two inches long. Thirty to forty…

The leaves of <i>Agave franzosinii</i> are lance shaped, roughish, and white. The leaves are also have a large, narrowly grooved spine and dark or gray prickles.

Agave Franzosinii

The leaves of Agave franzosinii are lance shaped, roughish, and white. The leaves are also have a large,…

The agave yuccaefolia flower is greenish yellow and grows either solitary or in pairs. Twenty to forty leaves form a rosette at the base. This variety of agave is found in Mexico.

Agave Yuccaefolia

The agave yuccaefolia flower is greenish yellow and grows either solitary or in pairs. Twenty to forty…

Littaea geminiflora, or the Twin-Flowered Agave, showing the flower and the whole plant.

Twin-Flowered Agave

Littaea geminiflora, or the Twin-Flowered Agave, showing the flower and the whole plant.

The leaves of <i>Ageratum houstonianum</i> are heart shaped at the base. The flowers are blue.

Ageratum Houstonianum

The leaves of Ageratum houstonianum are heart shaped at the base. The flowers are blue.

<i>Aglaonema costatum</i> is very dwarf and compact. The leaves are thick, heart shaped, and three inches wide. The leaves are dark green with an ivory white midrib and scattered blotches of white.

Aglaonema Costatum

Aglaonema costatum is very dwarf and compact. The leaves are thick, heart shaped, and three inches wide.…

"Agrimony (Agrimonia Eupatoria) showing branch, flowering spray, and fruit."-Whitney, 1902

Agrimensor

"Agrimony (Agrimonia Eupatoria) showing branch, flowering spray, and fruit."-Whitney, 1902

Pictured are the flower and bud of <i>Agrimonia euphoria</i>. The common name of the plant is common agrimony. The plant grows two to three feet high in little clumps from a short rootstock.

Agrimonia Eupatoria

Pictured are the flower and bud of Agrimonia euphoria. The common name of the plant is common agrimony.…

"A genus of plants of the natural order rosacae, sub-order Potentilleae. The calyx is five-cleft, without bracts; the hardened tube at length invests two carpels, and is covered with hooked bristles" &mdash; Chambers' Encyclopedia, 1875

Agrimony

"A genus of plants of the natural order rosacae, sub-order Potentilleae. The calyx is five-cleft, without…

Agrostemma is also known as Rose Campion. The coeli-rosa fimbriata variety have petals with a border of hairs. These petals are known as nana.

Agrostemma Coeli-Rosa Fimbriata

Agrostemma is also known as Rose Campion. The coeli-rosa fimbriata variety have petals with a border…

The agromstemma coeli-rosa purpurea flower has dark purple flowers. It is one of the prettiest varieties of rose campion.

Agrostemma Coeli-Rosa Purpurea Flowers

The agromstemma coeli-rosa purpurea flower has dark purple flowers. It is one of the prettiest varieties…

The flowers of agrostemma coronaria are white with a red middle. Each stem has one flower. The leaves are broad and have a leathery texture.

Agrostemma Coronaria Habit and Flower

The flowers of agrostemma coronaria are white with a red middle. Each stem has one flower. The leaves…

The agrostemma flos-jovis is known as the Flower of Jove. The flowers are purple or scarlet.

Agrostemma Flos-Jovis Habit and Flower

The agrostemma flos-jovis is known as the Flower of Jove. The flowers are purple or scarlet.

Of the Gentian family (Gentianaceae), the ague-weed (Gentiana quinquefolia).

Ague-Weed

Of the Gentian family (Gentianaceae), the ague-weed (Gentiana quinquefolia).

A group of ailanthus and sunflowers

Ailanthus and Sunflowers

A group of ailanthus and sunflowers

Air potato is the common name of dioscorea bulbifera. The tubers sometimes weigh several pounds. They are edible and have a potato like flavor.

Air Potato

Air potato is the common name of dioscorea bulbifera. The tubers sometimes weigh several pounds. They…

Ajuga is also known as Bugle. The ajuga reptans flower varies from blue to rose in color. This is a perennial variety.

Flower of Ajuga Reptans

Ajuga is also known as Bugle. The ajuga reptans flower varies from blue to rose in color. This is a…

<i>Ajuga reptans variety variegate</i> has leaves splashed and edged with creamy yellow.

Ajuga Reptans Variety Variegata

Ajuga reptans variety variegate has leaves splashed and edged with creamy yellow.

The flowers of <i>Akebia quint</a> are purple and fragrant. The flowers appear in early spring.

Akebia Quinata Flower

The flowers of Akebia quint are purple and fragrant. The flowers appear in early spring.

The fruit of <i>Akebia quint</i> is oblong and three to five inches long. The berries are dark purple.

Akebia Quinata Fruit

The fruit of Akebia quint is oblong and three to five inches long. The berries are dark purple.

Akene of Anemone, enlarged,(Gray, 1858).

Anemone Akene

Akene of Anemone, enlarged,(Gray, 1858).

Akene of Anemone, enlarged, cut in half to show the seed in it, (Gray, 1858).

Anemone Akene

Akene of Anemone, enlarged, cut in half to show the seed in it, (Gray, 1858).

Akene of Clematis and feathery tail, (Gray, 1858).

Clematis Akene

Akene of Clematis and feathery tail, (Gray, 1858).

Akenes with various types of pappus. <em>Rudbeckia</em>, pappus wanting.

Akenes

Akenes with various types of pappus. Rudbeckia, pappus wanting.

Akenes with various types of pappus. <em>Cichorium</em>, pappus a crown of fine scales.

Akenes

Akenes with various types of pappus. Cichorium, pappus a crown of fine scales.

Akenes with various types of pappus. <em>Coreopsis</em>, pappus of 2 small scales.

Akenes

Akenes with various types of pappus. Coreopsis, pappus of 2 small scales.

Akenes with various types of pappus. <em>Helenium</em>, pappus a crown of conspicuous scales.

Akenes

Akenes with various types of pappus. Helenium, pappus a crown of conspicuous scales.

Akenes with various types of pappus. <em>Cirsium</em>, pappus a tuft of plumose hairs.

Akenes

Akenes with various types of pappus. Cirsium, pappus a tuft of plumose hairs.

Akenes with various types of pappus. <em>Lactouca</em>, pappus borne on a long beak.

Akenes

Akenes with various types of pappus. Lactouca, pappus borne on a long beak.

"Akenes of a buttercup. A, head of akenes; B, section of a single akene. a, seed." -Bergen, 1896

Buttercup Akenes

"Akenes of a buttercup. A, head of akenes; B, section of a single akene. a, seed." -Bergen, 1896

African plant bearing yellow flowers.

Thunbergia Alata

African plant bearing yellow flowers.

Belonging to the orchids, one of six species.

Thunia Alba

Belonging to the orchids, one of six species.

Plant used for medicinal purposes by many Native American tribes, common in many forms of tea.

Spiraea Albiflora

Plant used for medicinal purposes by many Native American tribes, common in many forms of tea.

A popular fern with variagated fronds that are straw-colored. It thrives on acidic soil.

Pteris Cretica Albolineata

A popular fern with variagated fronds that are straw-colored. It thrives on acidic soil.

A plant with divided fronds, which are rounded and convex. They are generally between 2 and 3 feet in length and are clustered together.

Platycerium Alcicorne

A plant with divided fronds, which are rounded and convex. They are generally between 2 and 3 feet in…

"The popular name of shrubs and trees belonging to the geenus Alnus, natural order Cupulifer&aelig;."-Whitney, 1902

Alder

"The popular name of shrubs and trees belonging to the geenus Alnus, natural order Cupuliferæ."-Whitney,…

"Aldrovanda vesiculosa. Whorl of Leaves." &mdash; The Encyclopedia Britannica, 1893

Aldrovanda

"Aldrovanda vesiculosa. Whorl of Leaves." — The Encyclopedia Britannica, 1893

"Aldrovanda vesiculosa. Leaf pressed open and enlarged, showing glands, sensitive filaments, and quadrifid hairs." &mdash; The Encyclopedia Britannica, 1893

Aldrovanda

"Aldrovanda vesiculosa. Leaf pressed open and enlarged, showing glands, sensitive filaments, and quadrifid…

Alfalfa and lucerne are the common names of <i>medicago sativa</i>. The plant is native to Europe. It is cultivated as hay and pasture plants.

Alfalfa

Alfalfa and lucerne are the common names of medicago sativa. The plant is native to Europe. It is cultivated…

Blossom of an alfalfa plant, one of the oldest types of hay currently grown.

Alfalfa blossoms

Blossom of an alfalfa plant, one of the oldest types of hay currently grown.

Fruits borne in a ring; stamens 6; inflourescences much branched.

Alisma

Fruits borne in a ring; stamens 6; inflourescences much branched.

Alisma is also known as water plantain. The alisma natans flower is white. This plant is rare in North Wales but abundant in other parts of Europe.

Alisma Natans Flowers

Alisma is also known as water plantain. The alisma natans flower is white. This plant is rare in North…

The flowers of alisma plantago are rose colored and delicate. This is an British, aquatic plant.

Portion of the Flower Arrangement of Alisma Plantago

The flowers of alisma plantago are rose colored and delicate. This is an British, aquatic plant.

Leaves with several prominent rib-like veins running from base to apex.

Alismaceae

Leaves with several prominent rib-like veins running from base to apex.

Leaves with several very prominent ribs running from base to apex.

Alismaceae

Leaves with several very prominent ribs running from base to apex.

Alismaceae is an order of herbaceous marsh plants with milky juice. Butomaceae is an order of aquatic or marsh herbs. Hydrocharitaceae is an order of submerged aquatic herbs. Pictured are various parts of flowers of those orders.

Alismaceae, Butomaceae, and Hydrocharitaceae Orders

Alismaceae is an order of herbaceous marsh plants with milky juice. Butomaceae is an order of aquatic…

<i>Allamanda cathartica variety hendersonii</i> is tall, vigorous, and free flowering. The leaves are large, thick, and leathery.

Allamanda Cathartica Variety Hendersonii

Allamanda cathartica variety hendersonii is tall, vigorous, and free flowering. The leaves are large,…

"Allaria officinalis. a, upper part of stem, with leaves and flowers; b, extremity of a branch, in fruit." &mdash; Chambers' Encyclopedia, 1875

Allaria Officinalis

"Allaria officinalis. a, upper part of stem, with leaves and flowers; b, extremity of a branch, in fruit."…

The common name of <i>Allium fistulosum</i> is welsh onion. It has no distinct bulb, but only an enlarged base or crown. The leaves are usually clustered.

Allium Fistulosum

The common name of Allium fistulosum is welsh onion. It has no distinct bulb, but only an enlarged base…

Allium moly flowers are bright yellow. The flowers spread from compact common centers.

Allium Moly Flowers

Allium moly flowers are bright yellow. The flowers spread from compact common centers.

The flowers of <i>Allium moly</i> are numerous and appear in early spring. The leaves are flat and broad.

Allium Moly

The flowers of Allium moly are numerous and appear in early spring. The leaves are flat and broad.

The leaves of <i>Allium neapolitanum</i> are long and narrow. The flowers are large, pure white, with colored stamens.

Allium Neapolitanum

The leaves of Allium neapolitanum are long and narrow. The flowers are large, pure white, with colored…

The common name of <i>Allium tricoccum</i> is common wild leek. The flowers are greenish white on a scape four to twelve inches high. This plant grows in clumps.

Allium Tricoccum

The common name of Allium tricoccum is common wild leek. The flowers are greenish white on a scape four…

Allium ursinum is also known as ramsons or broad-leaved garllic. The flowers are pure white. There are one or two bright green, oval leaves per stalk.

Allium Ursinum Flowers

Allium ursinum is also known as ramsons or broad-leaved garllic. The flowers are pure white. There are…

The leaves of <i>Alloplectus schlimii</i> are green above and violet or violet purple beneath. The calyx is spotted with green and the corolla is yellow scarlet below, shading upward into a delicate violet.

Alloplectus Schlimii

The leaves of Alloplectus schlimii are green above and violet or violet purple beneath. The calyx is…