Pictured are flowers of the orders martyniaceae, gesneriaceae, lentibulariaceae, and globulariaceae. The flowers illustrated are (1) martynia, (2) gesneria, (3) achimenes, (4) utricularia, (5) globularia, and (6) cockburnia.

Orders of Martyniaceae, Gesneriaceae, Lentibulariaceae, and Globulariaceae

Pictured are flowers of the orders martyniaceae, gesneriaceae, lentibulariaceae, and globulariaceae.…

Pictured are flowers of the orders acanthaceae, myoporaceae, phrymaceae, and plantaginaceae. The flowers illustrated are (1) ruellia, (2) justicia, (3) myoporum, (4) phryma, and (5) plantago.

Orders of Acanthaceae, Myoporaceae, Phrymaceae, and Plantaginaceae

Pictured are flowers of the orders acanthaceae, myoporaceae, phrymaceae, and plantaginaceae. The flowers…

Pictured are flowers of the orders rubiaceae and valerianaceae. The flowers pictured are (1) galium, (2) houstonia, (3) bouvardia, (4) lonicera, and (5) valeriana.

Orders of Rubiaceae and Valerianaceae

Pictured are flowers of the orders rubiaceae and valerianaceae. The flowers pictured are (1) galium,…

Pictured are flowers of the orders dipsacaceae, cucurbitaceae, and campanulaceae. The flowers illustrated are (1) dipsacus, (2) scabiosa, (3) cucurbita, (4) campanula, and (5) lobelia.

Orders of Dispsacaceae, Cucurbitaceae, and Campanulaceae

Pictured are flowers of the orders dipsacaceae, cucurbitaceae, and campanulaceae. The flowers illustrated…

Pictured is abronia umbellata. The common name of abronia is sand verbena. The umbellata variety has pink flowers that are about a half inch. The plant is native from California seacoasts to Columbia.

Abronia Umbellata

Pictured is abronia umbellata. The common name of abronia is sand verbena. The umbellata variety has…

The common name of abutilon is flowering maple. Abutilon is also sometimes called Chinese bellflower. The colors of the flowers are mostly yellow, white, and pink.

Flower of Abutilon

The common name of abutilon is flowering maple. Abutilon is also sometimes called Chinese bellflower.…

Abutilon megapotamicum has a drooping habit. The flowers are two to three inches long. The flowers are lemon yellow with a red calyx.

Abutilon Megapotamicum

Abutilon megapotamicum has a drooping habit. The flowers are two to three inches long. The flowers are…

The common name of acacia calamifolia is broom wattle. It is a tall shrub with slender, erect branches. The shrub flowers February to April. The fruit is ripe in August.

Acacia Calamifolia

The common name of acacia calamifolia is broom wattle. It is a tall shrub with slender, erect branches.…

The acacia armata shrub is eight to ten feet wide and seven to eleven feet tall. The fruit is ripe is August and the shrub flowers February to April. A common name of acacia armata is kangaroo thorn.

Acacia Armata

The acacia armata shrub is eight to ten feet wide and seven to eleven feet tall. The fruit is ripe is…

The common name of acacia verticillata is whorl-leaved acacia. It is a spreading shrub or small tree of graceful habit. The pods are flat, straight, or slight curved. The flowers appear in March and April.

Acacia Verticillata

The common name of acacia verticillata is whorl-leaved acacia. It is a spreading shrub or small tree…

Red-Hot Cat-Tail is the common name of acalypha hispida. This shrub is cultivated for its long red spikes of flowers. The flower spikes are much longer than the leaves.

Red-Hot Cat-Tail

Red-Hot Cat-Tail is the common name of acalypha hispida. This shrub is cultivated for its long red spikes…

The common name of acantholimon is prickly thrift. The glumaceum variety is six inches tall with small, rose colored flowers. The flowers bloom July to September.

Acantholimon Glumaceum

The common name of acantholimon is prickly thrift. The glumaceum variety is six inches tall with small,…

The acanthorhiza aculeata tree grows thirty to forty feet tall. The tree is spiny at the base. The flowers are a dark, creamy pink.

Acanthorhiza Aculeata

The acanthorhiza aculeata tree grows thirty to forty feet tall. The tree is spiny at the base. The flowers…

Acer ginnala grows twenty feet tall. The leaves are three lobes. The flowers are yellowish and fragrant.

Acer Ginnala

Acer ginnala grows twenty feet tall. The leaves are three lobes. The flowers are yellowish and fragrant.

Red maple is the common name of acer rubrum. It is also known as scarlet or swamp maple. The flowers are red or scarlet. The flowers have five petals.

Red Maple

Red maple is the common name of acer rubrum. It is also known as scarlet or swamp maple. The flowers…

Achillea millefolium variation rubrum has red flowers. It is a variety of yarrow or milfoil.

Achillea Millefolium Variation Rubrum

Achillea millefolium variation rubrum has red flowers. It is a variety of yarrow or milfoil.

The <i>Achillea filipendulina</i> plant grows between four and five feet tall. The flowers are yellow and grow in dense heads. The flowers bloom June to September.

Achillea Filipendulina

The Achillea filipendulina plant grows between four and five feet tall. The flowers are yellow and grow…

<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.…

The flowers of <i>Achimenes grandiflora</i> are very large and distinctly red tinged. The leaves are mostly large and rusty below.

Achimenes Grandiflora

The flowers of Achimenes grandiflora are very large and distinctly red tinged. The leaves are mostly…

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,…

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,…

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…

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…

<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 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…

<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…

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 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…

Common horse chestnut is the common name of <i>Aesculus hippocastanum</i>. The tree is large, between sixty and eighty feet tall. The flowers are white tinged with red.

Opening Foliage of Common Horse Chestnut

Common horse chestnut is the common name of Aesculus hippocastanum. The tree is large, between sixty…

<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…

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 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.

<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 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.

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 common names of <i>Albizzia lebbek</i> are lebbeck tree, siris tree, and woman's tongue tree. The flowers of the tree are greenish yellow. The tree is tall.

Albizzia Lebbek

The common names of Albizzia lebbek are lebbeck tree, siris tree, and woman's tongue tree. The flowers…

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…

The flowers of the common almond are peach like and handsome.

Flower of Common Almond

The flowers of the common almond are peach like and handsome.

The leaves of <I>Aloe mitriformis</I> are upcurved and slight egg shaped. The leaves are somewhat prickly toward the tip beneath. The flowers are two inches long and bright red.

Aloe Mitriformis

The leaves of Aloe mitriformis are upcurved and slight egg shaped. The leaves are somewhat prickly toward…

<I>Alonso incisifolia</I> grows about two feet high. The flowers grow nearly two inches across, are irregular, and scarlet. There is also a white flowered variety.

Alonsoa Incisifolia

Alonso incisifolia grows about two feet high. The flowers grow nearly two inches across, are irregular,…

<I>Alpine Mutica</I> has very short stalked leaves. The outer segments of the flowers are white while the bright yellow lip is veined with crimson.

Alpinia Mutica

Alpine Mutica has very short stalked leaves. The outer segments of the flowers are white while the bright…

The flowers of <I>Alstroemeria pulchella</I> are dark red tipped with green and spotted inside with brown. The flowering stem is two to three feet tall with scattered leaves.

Alstroemeria Pulchella

The flowers of Alstroemeria pulchella are dark red tipped with green and spotted inside with brown.…

The common name of <I>Althaea officials</I> is marsh mallow. The flowers are blush or rose and one inch across. The root can be used for medicinal purposes.

Althaea Officinalis

The common name of Althaea officials is marsh mallow. The flowers are blush or rose and one inch across.…

Sweet alyssum is the common name of <I>Alyssum maritime</i>. The flowers grow in clusters at the end of the stems. The flowers have a honey scent. The leaves taper to the base.

Sweet Alyssum

Sweet alyssum is the common name of Alyssum maritime. The flowers grow in clusters at the end of the…

The common name of <I>Alyssum saxatile</i> is golden tuft. The numerous flowers are golden yellow. The plant grows one foot high.

Alyssum Saxatile

The common name of Alyssum saxatile is golden tuft. The numerous flowers are golden yellow. The plant…

<I>Alyssum argenteum</I> is a dwarf and dense grower. The flowers are yellow and grow in clustered heads. The flowers bloom all summer.

Alyssum Argenteum

Alyssum argenteum is a dwarf and dense grower. The flowers are yellow and grow in clustered heads. The…

The common name of <I>Amaranths caudates</I> is love-lies-bleeding. The plant is tall, about three to five feet. The flowers spikes are red, long, and slender.

Amarantus Caudatus

The common name of Amaranths caudates is love-lies-bleeding. The plant is tall, about three to five…

The <I>Amaranths gangeticus</i> plant is three feet tall or smaller, usually only one foot tall. The flowers grow in short spikes.

Amarantus Gangeticus

The Amaranths gangeticus plant is three feet tall or smaller, usually only one foot tall. The flowers…

The common name of <I>Amaryllis belladonna</I> is belladona lily. The flowers are usually rose red and fragrant. The flowers resemble the lily.

Amarylis Belladona

The common name of Amaryllis belladonna is belladona lily. The flowers are usually rose red and fragrant.…

<I>Amelanchier alnifolia</I> is a ten foot tall shrub with stout, upright branches. The flowers are rather small. The fruit is black and bloomy.

Amelanchier Alnifolia

Amelanchier alnifolia is a ten foot tall shrub with stout, upright branches. The flowers are rather…

The common name of <I>Amorpha fruticose</I> is bastard indigo. The shrub grows between five and twenty feet tall. The flowers are dark purple.

Amorpha Fruticosa

The common name of Amorpha fruticose is bastard indigo. The shrub grows between five and twenty feet…

The common name of <I>Anacardium occidentale</I> is cashew. The tree grows twenty to forty feet tall. The flowers are rosy tinted and fragrant. The nut is kidney shaped or heart shaped.

Anacardium Occidentale

The common name of Anacardium occidentale is cashew. The tree grows twenty to forty feet tall. The flowers…

The common names of <I>Anagalis arvensis</I> are common pimpernel and poor man's weatherglass. The flowers are scarlet varying to white. The leaves are opposite or in threes.

Anagalis Arvensis

The common names of Anagalis arvensis are common pimpernel and poor man's weatherglass. The flowers…

The dropmore variety of <I>Anchusa italica</i> grows three feet tall. The flowers are purple and grow in loose heads.

Dropmore Variety of Anchusa Italica

The dropmore variety of Anchusa italica grows three feet tall. The flowers are purple and grow in loose…

<I>Andromeda polifolia</i> grows up to two feet tall. The flowers nod on small, slender stems. The leaves are oblong and narrow.

Andromeda Polifolia

Andromeda polifolia grows up to two feet tall. The flowers nod on small, slender stems. The leaves are…

The common names of the nuttalliana variety of <I>Anemone patens</I> are wild patens and American pasque flower. The flowers appear before the root.

Nuttalliana Variety of Anemone Patens

The common names of the nuttalliana variety of Anemone patens are wild patens and American pasque flower.…