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The stalk of caladium humboldtii is slender and two to three times longer than the blade. The blade is oblong and green along the margin. The blade has many large and small transparent spots between the midrib and primary veins.

Caladium Humboldtii

The stalk of caladium humboldtii is slender and two to three times longer than the blade. The blade…

Calanthe veitchii flowers in the winter. The flowers are rose colored but there is also a white variety. It is a hybrid between the rosea and vestita varieties of calanthe.

Calanthe Veitchii

Calanthe veitchii flowers in the winter. The flowers are rose colored but there is also a white variety.…

Calathea veitchiana has a strong, loose, spreading habit and grows one to four feet tall. The flowers grow in pairs and are primrose-white.

Calathea Veitchiana

Calathea veitchiana has a strong, loose, spreading habit and grows one to four feet tall. The flowers…

The common name of calathea zebrina is zebra plant. The plant grows one to three feet tall. The leaves are rich, velvety green with alternating bars of pale, yellowish green and dark olive green.

Calathea Zebrina

The common name of calathea zebrina is zebra plant. The plant grows one to three feet tall. The leaves…

Calluna vulgaris has small, rosy pink flowers. The flowers are sometimes white. The plant grows between half a foot and three feet tall.

Calluna Vulgaris

Calluna vulgaris has small, rosy pink flowers. The flowers are sometimes white. The plant grows between…

The flowers of calochortus gunnisonii are light blue or almost white. The flowers are delicate yellowish green below the middle, purple banded at the base, and bearing a band of green hairs across each petal.

Calochortus Gunnisonii

The flowers of calochortus gunnisonii are light blue or almost white. The flowers are delicate yellowish…

The camassia quamash species varies greatly. Some forms are low and slender, others grow two to three feet high. The flowers vary from almost white to blue.

Camassia Quamash

The camassia quamash species varies greatly. Some forms are low and slender, others grow two to three…

The common name of campanula medium is Canterbury bells. The flowers are violet-blue, varying to several shades and white. The flowers are two inches long.

Campanula Medium

The common name of campanula medium is Canterbury bells. The flowers are violet-blue, varying to several…

Illustrated is a narrow flowered form of campanula persicifolia. The plant grows two to three feet tall. The flowers are blue or white.

Campanula Persicifolia

Illustrated is a narrow flowered form of campanula persicifolia. The plant grows two to three feet tall.…

The common name of campanula pyramidalis is chimney campanula. The plant grows four to five feet tall. The flowers are pale blue varying to white.

Campanula Pyramidalis

The common name of campanula pyramidalis is chimney campanula. The plant grows four to five feet tall.…

The common name of campanula trachelium is throatwort. The plant grows two to three feet tall. The flowers are blue or white and droop.

Campanula Trachelium

The common name of campanula trachelium is throatwort. The plant grows two to three feet tall. The flowers…

The common name of cardamine pratensis is cuckoo flower. The plant is slender and grows twelve to twenty inches tall. The flowers are a half inch long and are white or rose colored.

Cardamine Pratensis

The common name of cardamine pratensis is cuckoo flower. The plant is slender and grows twelve to twenty…

The fruit of cardiospermum is an inflated seed vessel. It has a white heart shaped spot.

Fruit of Cardiospermum

The fruit of cardiospermum is an inflated seed vessel. It has a white heart shaped spot.

Carludovica palmata has no trunk. The blades are four lobed. The blades are dark green and gracefully spreading.

Carludovica Palmata

Carludovica palmata has no trunk. The blades are four lobed. The blades are dark green and gracefully…

Picotee carnations are pure white or yellow. Each petal is bordered with a band of color at the margin.

Picotee Carnation

Picotee carnations are pure white or yellow. Each petal is bordered with a band of color at the margin.

Illustrated is a flower of carnegia gigantea. The flower is white.

Carnegia Gigantea

Illustrated is a flower of carnegia gigantea. The flower is white.

The casuarina equisetifolia tree can grow up to one hundred fifty feet tall. The branches are drooping and pale green.

Casuarina Equisetifolia

The casuarina equisetifolia tree can grow up to one hundred fifty feet tall. The branches are drooping…

The flowers of cattleya mendelii are seven to eight inches across. The sepals and petals are white, often tinted pale rosy mauve. The lobe is rich crimson purple passing into the yellow throat.

Cattleya Mendelii

The flowers of cattleya mendelii are seven to eight inches across. The sepals and petals are white,…

The flowers of cattleya trianae are two to six inches across. The color of the flowers vary from delicate rose to white. The throat is yellow and often streaked with a deeper color.

Cattleya Trianae

The flowers of cattleya trianae are two to six inches across. The color of the flowers vary from delicate…

The flowers of cattleya citrina are yellow except for the white border of the front lobe of the lip. Each stem usually bears only one flower. The leaves are four to seven inches long.

Cattleya Citrina

The flowers of cattleya citrina are yellow except for the white border of the front lobe of the lip.…

Ceanothus americanus is a low, erect shrub that grows three feet tall. The leaves are bright green and dull above and paler and hairy beneath.

Ceanothus Americanus

Ceanothus americanus is a low, erect shrub that grows three feet tall. The leaves are bright green and…

Illustrated are cedrus libani cedars on Mount Lebanon. They are large trees with horizontally spreading branches. The leaves are one inch or longer and dark or bright green.

Cedar on Mount Lebanon

Illustrated are cedrus libani cedars on Mount Lebanon. They are large trees with horizontally spreading…

Centaurea cyanus has many common names including blue bottle, bluet, bachelor's button, cornflower, ragged sailor, and French pink. The flowers are blue, purple, pink, or white.

Centaurea Cyanus

Centaurea cyanus has many common names including blue bottle, bluet, bachelor's button, cornflower,…

The common name of centaurea moschata is sweet sultan. The stem is two feet tall and branching below. The flowers are white, yellow, or purple and fragrant.

Centaurea Moschata

The common name of centaurea moschata is sweet sultan. The stem is two feet tall and branching below.…

The pitchered leaves of cephalotus follicularis are green, crimson or purple, and white. The pitchers grow up to an inch and a half long.

Cephalotus Follicularis

The pitchered leaves of cephalotus follicularis are green, crimson or purple, and white. The pitchers…

Ceratozamia mexicana has a thick, short trunk covered with the remains of fallen leaf stalks. The leaves are a rich, dark green

Ceratozamia Mexicana

Ceratozamia mexicana has a thick, short trunk covered with the remains of fallen leaf stalks. The leaves…

The common name of chamaedaphne is leather leaf. The calyculata variety is a bush with spreading or horizontal branches. The flowers of the plant are nodding and white.

Chamaedaphne Calyculata

The common name of chamaedaphne is leather leaf. The calyculata variety is a bush with spreading or…

Chelone glabra usually grows one to two feet tall. The flowers are white or rose tinged.

Chelone Glabra

Chelone glabra usually grows one to two feet tall. The flowers are white or rose tinged.

The common name of chimaphila is pipsissewa. The maculata variety has white flowers. There are two to five flowers per stem.

Chimaphila Maculata

The common name of chimaphila is pipsissewa. The maculata variety has white flowers. There are two to…

The common name of chionodoxa is glory-of-the-snow. The luciliae variety has bright blue flowers with white centers.

Chionodoxa Luciliae

The common name of chionodoxa is glory-of-the-snow. The luciliae variety has bright blue flowers with…

Chrysanthemum carinatum grows two to three feet tall. The stems are branched with fleshy leaves. The flowers are nearly two inches across with white rays and a yellow ring at the base.

Chrysanthemum Carinatum

Chrysanthemum carinatum grows two to three feet tall. The stems are branched with fleshy leaves. The…

The Paris or Marguerite daisy is the common name of chrysanthemum frutescens. It is a perennial that grows three feet tall. There are numerous flowers heads that always grow alone on each stem. The rays are typically white.

Paris Daisy

The Paris or Marguerite daisy is the common name of chrysanthemum frutescens. It is a perennial that…

Chrysanthemum coccineum grows one to two feet tall. The flowers are white or red in shades of pink, carmine, rose, lilac, and crimson.

Chrysanthemum Coccineum

Chrysanthemum coccineum grows one to two feet tall. The flowers are white or red in shades of pink,…

The common names of chrysanthemum leucanthemum are whiteweed and ox-eye daisy. The plant grows one to two feet tall. The flowers heads are showy and white.

Chrysanthemum Leucanthemum

The common names of chrysanthemum leucanthemum are whiteweed and ox-eye daisy. The plant grows one to…

The hairy type of chrysanthemum is often called ostrich plume and Japanese hairy. The flowers are white with long hairs.

Hairy Type of Chrysanthemum

The hairy type of chrysanthemum is often called ostrich plume and Japanese hairy. The flowers are white…

Chysis bractescens are three to five flowers that are about three inches across. The flowers are ivory-white with a yellow and red streaked lip.

Chysis Bractescens

Chysis bractescens are three to five flowers that are about three inches across. The flowers are ivory-white…

The common name of cimicifuga is bugbane. The racemosa variety grows three to eight feet tall. The flowers are white.

Cimicifuga Racemosa

The common name of cimicifuga is bugbane. The racemosa variety grows three to eight feet tall. The flowers…

Illustrated is a small plant of florists' cineraria. The plants run in white and in shades of blue, pink, and purple-red.

Florists' Cineraria

Illustrated is a small plant of florists' cineraria. The plants run in white and in shades of blue,…

The leaves of grapefruit are large and dark, glossy green above. The shape is oval or elliptic oval.

Grapefruit Leaf

The leaves of grapefruit are large and dark, glossy green above. The shape is oval or elliptic oval.

Pictured is the leaf or sour or seville orange. The leaves are light green when young and three to four inches long.

Sour Orange Leaf

Pictured is the leaf or sour or seville orange. The leaves are light green when young and three to four…

Common or sweet orange is the common name of citrus sinensis. It is a medium sized tree with a rounded top. The flowers are white. The fruit is oval with sweet pulp.

Common or Sweet Orange

Common or sweet orange is the common name of citrus sinensis. It is a medium sized tree with a rounded…

Clarkia elegans grows one to six feet tall. The flowers are purple or rose colored. There are some white varieties.

Clarkia Elegans

Clarkia elegans grows one to six feet tall. The flowers are purple or rose colored. There are some white…

Clarkia pulchella grows between twelve and eighteen inches tall. The flowers are lilac and there is also a white variety.

Clarkia Pulchella

Clarkia pulchella grows between twelve and eighteen inches tall. The flowers are lilac and there is…

Clematis stanleyia is an erect, robust herb that grows three feet tall. The flowers are one to three inches across and white to pink-purple.

Clematis Stanleyia

Clematis stanleyia is an erect, robust herb that grows three feet tall. The flowers are one to three…

Clematis lawsoniana henryi is a derivative from clematis lanuginosa. The flowers are creamy white and become fully expanded when grown in the open sun.

Clematis Lawsoniana Henryi

Clematis lawsoniana henryi is a derivative from clematis lanuginosa. The flowers are creamy white and…

The flowers of clematis paniculata are one to one and a half inches across. The flowers are dull white and bloom in September.

Flower of Clematis Paniculata

The flowers of clematis paniculata are one to one and a half inches across. The flowers are dull white…

The common name of cleome spinosa is giant spider plant. The flowers have four petals. The flowers are rose-purple varying to white.

Cleome Spinosa

The common name of cleome spinosa is giant spider plant. The flowers have four petals. The flowers are…

Clerodendron thomsonae is a tall, twining, evergreen shrub. The flowers are white and light crimson. The shrub is native to west Africa.

Clerodendron Thomsonae

Clerodendron thomsonae is a tall, twining, evergreen shrub. The flowers are white and light crimson.…

Clerodendron trichotomum is a slender but erect, graceful sub-shrub. It grows four to ten feet tall, sometimes taller. The flowers are white with a reddish brown calyx.

Clerodendron Trichotomum

Clerodendron trichotomum is a slender but erect, graceful sub-shrub. It grows four to ten feet tall,…

The common name of clethra is white adler. The tomentosa variety grows two to eight feet tall. It is native from North Carolina to Florida and Alabama.

Clethra Tomentosa

The common name of clethra is white adler. The tomentosa variety grows two to eight feet tall. It is…

The common names of coccoloba uvifera are sea grape, shore grape, and uvadel mar. The leaves are large, often five inches long and seven inches wide. The flowers are white and fragrant.

Coccoloba Uvifera

The common names of coccoloba uvifera are sea grape, shore grape, and uvadel mar. The leaves are large,…

Cochlearia danica grows six to eight inches tall. The leaves are rounded and kidney shaped. The small white flowers cover the plant in early summer.

Cochlearia Danica

Cochlearia danica grows six to eight inches tall. The leaves are rounded and kidney shaped. The small…

The flowers of coelia baueriana are small, white, and fragrant. The flower lip is yellow. The plant is an orchid.

Coelia Baueriana

The flowers of coelia baueriana are small, white, and fragrant. The flower lip is yellow. The plant…

The flower clusters of coelogyne cristata have five to nine flowers. The flowers are white and drooping.

Coelogyne Cristata

The flower clusters of coelogyne cristata have five to nine flowers. The flowers are white and drooping.

The common name of coix lacryma-jobi is Job's tears. The beads or "tears" are pearly white to a lead color. The grass grows two to four feet tall.

Coix Lacryma-Jobi

The common name of coix lacryma-jobi is Job's tears. The beads or "tears" are pearly white to a lead…

The common names of colchicum are meadow saffron and autumn crocus. The autumnale variety has one to four flowers growing from each spathe. The flowers are purple. There is also a white variety.

Colchicum Autumnale

The common names of colchicum are meadow saffron and autumn crocus. The autumnale variety has one to…

Collinsia bicolor grows one to two feet tall. The flowers are typically purple and white.

Collinsia Bicolor

Collinsia bicolor grows one to two feet tall. The flowers are typically purple and white.

The flowers of collinsia bicolor alba are pure white. The flowers can also have a greenish or yellowish lower lip.

Collinsia Bicolor Alba

The flowers of collinsia bicolor alba are pure white. The flowers can also have a greenish or yellowish…

Colocasia antiquorum esculenta has violet leafstalks. The blade is black-green with violet margins.

Colocasia Antiquorum Esculenta

Colocasia antiquorum esculenta has violet leafstalks. The blade is black-green with violet margins.

The common name of convovulus sepium is rutland beauty. The flowers are white, rose, or pink with white stripes.

Convovulus Sepium

The common name of convovulus sepium is rutland beauty. The flowers are white, rose, or pink with white…