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>Achimenes longiflora</i> flowers are violet-blue and whitish beneath. The flowers grow alone on each stem. The leaves are opposite or 3-4 whorled.

Achimenes Longiflora

Achimenes longiflora flowers are violet-blue and whitish beneath. The flowers grow alone on each stem.…

Shown are the tubers of the coccinea section of achimenes. The coccinea section are late bloomers.

Tubers of the Coccinea Section of Achimenes

Shown are the tubers of the coccinea section of achimenes. The coccinea section are late bloomers.

"Acicarpha spathulata. 1. section of an entire flower; 2. perpendicular section of ripe fruit." -Lindley, 1853

Acicarpha

"Acicarpha spathulata. 1. section of an entire flower; 2. perpendicular section of ripe fruit." -Lindley,…

The flowers of <i>Acidanthera bicolor</i> are creamy white and blotched chocolate-brown within. The flowers are very fragrant.

Acidanthera Bicolor

The flowers of Acidanthera bicolor are creamy white and blotched chocolate-brown within. The flowers…

The flowers of <i>Acineta barkeri</i> are yellow striped with red-brown. The pseudobulbs has a cone shape, are four to five inches long, and usually bear three or more leaves.

Acineta Barkeri

The flowers of Acineta barkeri are yellow striped with red-brown. The pseudobulbs has a cone shape,…

Large herb with a very stout stem, often from 1 to 3dm in diameter at base, over 1.5m tall.

Acnida

Large herb with a very stout stem, often from 1 to 3dm in diameter at base, over 1.5m tall.

"a poisonous plant, monk's-hood, wolf's-bane."-Whitney, 1902

Aconite

"a poisonous plant, monk's-hood, wolf's-bane."-Whitney, 1902

The Winter Aconite (Eranthis hyemalis) is a European plant in the Ranunculaceae family of buttercups.

Winter Aconite

The Winter Aconite (Eranthis hyemalis) is a European plant in the Ranunculaceae family of buttercups.

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…

The common name of <i>Aconite autumnal</i> is autumn aconite. The stem is three to five feet tall. The leaves are five lobed. The flowers are blue, lilac, or whitish and grow in a simple spike.

Aconitum Autumnale

The common name of Aconite autumnal is autumn aconite. The stem is three to five feet tall. The leaves…

Monk's hood, or aconitum napellus, is a blue flower. Monk's hood is a poisonus plant to both humans and cattle. This flower is often mistaken for horseradish.

Monk's Hood

Monk's hood, or aconitum napellus, is a blue flower. Monk's hood is a poisonus plant to both humans…

The common names of <i>Aconite napellus</i> are true monkshood and officinal aconite. It is the most poisonous species. The flowers are blue and grow on erect stems.

Aconitum Napellus

The common names of Aconite napellus are true monkshood and officinal aconite. It is the most poisonous…

Each aconite flower has five petals. The leaves are shaped like palms. The roots of the plant should not be left around because they are poisonous and could be eaten by a person or animal.

Parts of Aconitum Napellus

Each aconite flower has five petals. The leaves are shaped like palms. The roots of the plant should…

The common name of <i>Aconite uncinatum</i> is wild monkshood. The flowers are blue and the leaves are thick, and deeply cut into 3-5 cut toothed lobes. The stem is slender and 3-5 feet tall.

Aconitum Uncinatum

The common name of Aconite uncinatum is wild monkshood. The flowers are blue and the leaves are thick,…

Aconitum variegatum flowers are large and blue.  The flowers grown in clusters. Each individual flower has a helmet shape.

Aconitum Variegatum Habit and Flower

Aconitum variegatum flowers are large and blue. The flowers grown in clusters. Each individual flower…

Plants aromatic when crushed.

Acorus

Plants aromatic when crushed.

Acroclinium roseum has many smooth leaves. The flowers are rose colored and stand on slender, erect stems.

Acroclinium Roseum Habit and Flower

Acroclinium roseum has many smooth leaves. The flowers are rose colored and stand on slender, erect…

"Red Baneberry, showing flowering plant and fruiting raceme."-Whitney, 1902

Actaea

"Red Baneberry, showing flowering plant and fruiting raceme."-Whitney, 1902

The acataea spicata has white, bluish flowers with black berries. The berries are poisonous. The common name for acataea spicata is baneberry.

Actaea Spicata Habit and Flower

The acataea spicata has white, bluish flowers with black berries. The berries are poisonous. The common…

A shows the cross section of the ovary of actaea spicata. B shows the cross section of the ovary of paeonia.

Cross Section of Ovary of Actaea Spicata and Paeonia

A shows the cross section of the ovary of actaea spicata. B shows the cross section of the ovary of…

<I>Actinide argot</i> is a high climbing shrub. There are three or more white flowers. The fruit is greenish yellow, about one inch long, and sweet.

Actinidia Arguta

Actinide argot is a high climbing shrub. There are three or more white flowers. The fruit is greenish…

The actinidia volubilis shrub has overlapping petals and leaves. The flowers on this shrub are small and white.

Actinidia Volubilis Shrub

The actinidia volubilis shrub has overlapping petals and leaves. The flowers on this shrub are small…

The leaves of <i>Actinoepis coronary</i> are opoosite, except for the upper ones. The flowers are some of the prettiest of annual flowers.

Actinolepis Coronaria Flower

The leaves of Actinoepis coronary are opoosite, except for the upper ones. The flowers are some of the…

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…

Spanish flower, a tulipia belonging to the Liliaceae family.

Tulipa Acuminata

Spanish flower, a tulipia belonging to the Liliaceae family.

"Acuminate Leaf"-Whitney, 1902

Acuminate

"Acuminate Leaf"-Whitney, 1902

The ada aurantiaca is an orchid that is an orange-scarlet color. Each flower is streaked with black on the inside. There are six to ten blossoms on each long, hanging stem.

Ada Aurantiaca Orchid

The ada aurantiaca is an orchid that is an orange-scarlet color. Each flower is streaked with black…

<i>Ada aurantiaca</i> has pseudobulbs that are two to three inches long. The petals and sepals of the flowers are twice as long as the lip.

Ada Aurantiaca

Ada aurantiaca has pseudobulbs that are two to three inches long. The petals and sepals of the flowers…

The common name of <i>Adansonia digital</i> is baobab tree. The flowers of this tree open wide. The petals then roll and and wither.

Flower of Adansonia Digitata

The common name of Adansonia digital is baobab tree. The flowers of this tree open wide. The petals…

Adder's tongue is the common name of erythronium americanum. The flowers are yellow with recurved segments. The plant is native from east Canada to Florida and Arkansas.

Adder's Tongue

Adder's tongue is the common name of erythronium americanum. The flowers are yellow with recurved segments.…

Adder-Tongue, Ophioglossum: spore-cases in a kind of spike: <em>a</em>, a portion of the fruiting part , above natural size; showing two rows of the firm spore-cases, which open transversely into two selves.

Adder-Tongue

Adder-Tongue, Ophioglossum: spore-cases in a kind of spike: a, a portion of the fruiting part…

Lphioglossum (adder's-tongue) is a genus of about 25-30 species of Ophioglossales in the family Ophioglossaceae, with a cosmopolitan but primarily tropical and subtropical distribution. The name Ophioglossum comes from the Greek, and means "snake-tongue". Adders-tongues are so-called because the spore-bearing stalk is thought to resemble a snake's tongue. Each plant typically sends up a small, undivided leaf blade with netted venation, and the spore stalk forks from the leaf stalk, terminating in sporangia which are partially concealed within a structure with slitted sides.

Adderstongue

Lphioglossum (adder's-tongue) is a genus of about 25-30 species of Ophioglossales in the family Ophioglossaceae,…

"Adlumia cirrhosa; single leaf and panicle"-Whitney, 1902

Adlumia

"Adlumia cirrhosa; single leaf and panicle"-Whitney, 1902

The common names of <i>Adlumia fungus</i> are climbing fumitory, mountain fringe, and allegheny vine. The vine climbs by the slender young leaf stalks.

Adlumia Fungosa

The common names of Adlumia fungus are climbing fumitory, mountain fringe, and allegheny vine. The vine…

"Adnate Anther, Adnate Stipule."-Whitney, 1902

Adnate

"Adnate Anther, Adnate Stipule."-Whitney, 1902

The common name of adonis aestivalis is Pheasant's Eye. The flowers are deep crimson with flat, oblong petals. The stem of the flower is simple and elongated.

Flower of Adonis Aestivalis

The common name of adonis aestivalis is Pheasant's Eye. The flowers are deep crimson with flat, oblong…

The common name of <i>Adonis vernal</i> is spring adonis. The flowers are large with 10-15 petals. The flowers bloom in early spring.

Adonis Vernalis

The common name of Adonis vernal is spring adonis. The flowers are large with 10-15 petals. The flowers…

The aechmea fulgens flower is deep red with a bluish tip. The stalk is red and leafless. The leaves are somewhat sword-shaped and abruptly end.

Aechmea Fulgens Flower

The aechmea fulgens flower is deep red with a bluish tip. The stalk is red and leafless. The leaves…

<i>Aechmea miniata variety discolor</i> has purple leaves or leaves that are violet-brown on the back.

Aechmea Miiniata Variety Discolor

Aechmea miniata variety discolor has purple leaves or leaves that are violet-brown on the back.

<i>Aeglopsis chevalier</i> is a large shrub or small, spiny tree. The spines are long, slender, and straight. The fruits are deep orange with a thin, hard shell.

Aeglopsis Chevalieri

Aeglopsis chevalier is a large shrub or small, spiny tree. The spines are long, slender, and straight.…

<i>Aegopodium podograria variety variegated</i> grows twelve to fourteen inches tall. It is a rapid growing form.

Aegopodium Podograria Variety Variegatum

Aegopodium podograria variety variegated grows twelve to fourteen inches tall. It is a rapid growing…

A crowded species of sugar cane. The branches grow up to 12 inches in length, and the stems up to 7 feet high. It is native to Algeria.

Saccharum Aegyptiacum

A crowded species of sugar cane. The branches grow up to 12 inches in length, and the stems up to 7…

A type of orchid, the aerides crispum flower is white spread with a purplish rose color. The flower is almost two inches in diameter with slightly egg shaped leaves and petals.

The Flower of Aerides Crispum

A type of orchid, the aerides crispum flower is white spread with a purplish rose color. The flower…

The flowers of aerides odoratum are creamy white with pink tips. The leaves are dark green with an abrupt point.

Aerides Odoratum Flowers

The flowers of aerides odoratum are creamy white with pink tips. The leaves are dark green with an abrupt…

The leaves of <i>Aerides odoratum</i> are six to eight inches long and up to two inches broad. The flowers are about one inch long and are very fragrant.

Aerides Odoratum

The leaves of Aerides odoratum are six to eight inches long and up to two inches broad. The flowers…

The flowers on the aeschynanthus boschianus shrub are scarlet and clustered together. The flowers are tube shaped and the outermost part is purplish in color.

Aeschynanthus Boschianus Shrub

The flowers on the aeschynanthus boschianus shrub are scarlet and clustered together. The flowers are…

<i>Aesculus georgiana</i> is a shrub that grows six feet tall. The flowers are red and yellow. The shrub flowers in May and June.

Aesculus Georgiana

Aesculus georgiana is a shrub that grows six feet tall. The flowers are red and yellow. The shrub flowers…

<i>Aesculus parviflora</i> shrubs grow between three and ten feet tall. There are five to seven oblong leaflets. The fruit is smooth.

Aesculus Parviflora

Aesculus parviflora shrubs grow between three and ten feet tall. There are five to seven oblong leaflets.…

The flowers of aethionema cordifolium are rosy and lilac colored. The flowers are small and the leaves are crowded. The flowers cab grow between six and eight inches tall.

Habit and Flowers of Aethionema Cordifolium

The flowers of aethionema cordifolium are rosy and lilac colored. The flowers are small and the leaves…

The flowers of aethionema grandiflorum are a warm rose color and are crowded together. The bush is about one and a half feet high. IT is said the grandiflorum is the most handsome of the aethionema genus.

The Habit and Flowers of Aethionema Grandiflorum

The flowers of aethionema grandiflorum are a warm rose color and are crowded together. The bush is about…

African plant, calla lilly.

Zantedeschia Aethiopica

African plant, calla lilly.

African marigold is the common name of tagetes erecta. These marigolds are employed for summer bedding. African marigolds are lemon or orange colored.

African Marigold

African marigold is the common name of tagetes erecta. These marigolds are employed for summer bedding.…

The agapanthus flower is commonly known as the African Lily. The umbellatus variety is bright blue and found in South Africa.

Agapanthus Umbellatus Flower

The agapanthus flower is commonly known as the African Lily. The umbellatus variety is bright blue and…

The common names of <i>agapanthus umbellatus</i> are African Lily and Lily-of-the-Nile. The flowers are blue and grow ten to thirty in an umbel. The leaves are two feet long and numerous.

Agapanthus Umbellatus

The common names of agapanthus umbellatus are African Lily and Lily-of-the-Nile. The flowers are blue…

The agathaea coelestis flower is blue with one head per stem. The leaves are opposite each other along the stem and are egg shaped.

Agathaea Coelestis Flower

The agathaea coelestis flower is blue with one head per stem. The leaves are opposite each other along…

"Century-plant. A large North American genus of plants, of the natural order Amaryllidace&aelig;, chiefly Mexican."-Whitney, 1902

Agave

"Century-plant. A large North American genus of plants, of the natural order Amaryllidaceæ, chiefly…

A plant with large fleshy leaves that yields many products. It is a tall plant with a spiny top that only blossoms after ten to seventy years.

Agave

A plant with large fleshy leaves that yields many products. It is a tall plant with a spiny top that…

Agave americana has yellowish green flowers that are between two and three inches long. The leaves can be as long as six feet and are concave shaped. The leaves have dark brown prickles.

Agave Americana Flower

Agave americana has yellowish green flowers that are between two and three inches long. The leaves can…

Pictured is <i>Agave americana</i> as commonly grown in greenhouses. It is the yellow margined form.

Agave Americana

Pictured is Agave americana as commonly grown in greenhouses. It is the yellow margined form.

The leaves of <i>Agave americana</i> are smooth, gray, and lance shaped. The plant has moderately large gray prickles.

Agave Americana in Flower

The leaves of Agave americana are smooth, gray, and lance shaped. The plant has moderately large gray…