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The common name of pimelea is rice flower. The ligustrina hypericina variety has white flowers in round heads. The plant grows between five and six feet tall.

Pimelea Ligustrina Hypericina

The common name of pimelea is rice flower. The ligustrina hypericina variety has white flowers in round…

Pine beauty moth is the common name of trachea piniperda. This moth is a heavy bodied insect with variegated wings of a reddish brown color. The wings are mottled with orange, yellow, white and sometimes green.

Pine Beauty Moth

Pine beauty moth is the common name of trachea piniperda. This moth is a heavy bodied insect with variegated…

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.…

The common names of acer saccharinum are white or silver maple. The tree is large, about one hundred twenty feet tall. The leaves are deeply five lobed. The leaves are green above, silvery white beneath, and four to six inches long.

Acer Saccharinum

The common names of acer saccharinum are white or silver maple. The tree is large, about one hundred…

<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>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 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…

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…

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 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 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.…

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 leaves of <i>Alocasia sanderiana</i> are long with deeply notched margins. The leaves are a deep, glossy green with a metallic reflection. The leaves also have prominent white margins and veins.

Alocasia Sanderiana

The leaves of Alocasia sanderiana are long with deeply notched margins. The leaves are a deep, glossy…

The leaves of <i>Aloe serrulata</i> are spirally arranged and spreading. The leaves have scattered, elongated white blotches and a white margin.

Aloe Serrulata

The leaves of Aloe serrulata are spirally arranged and spreading. The leaves have scattered, elongated…

<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 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…

Pictured is the single flowered form of <I>Anemone coronaria.</I> The common name is poppy-flowered anemone. The flowers have many mixtures of colors from red, blue, white, and more.

Anemone Coronaria

Pictured is the single flowered form of Anemone coronaria. The common name is poppy-flowered anemone.…

The common name of <I>Anemone nemorosa</i> is wood anemone. The flowers are one inch across and are white or purplish. The stem is simple, nearly smooth, and three to eight inches tall.

Anemone Nemorosa

The common name of Anemone nemorosa is wood anemone. The flowers are one inch across and are white or…

The stems of <I>Angraecum superbum</I> are four feet or more tall. The flowers are green and spreading with a white lip. The leaves are up to two feet long.

Angraecum Superbum

The stems of Angraecum superbum are four feet or more tall. The flowers are green and spreading with…

The common names of <I>Annona muricata</i> are soursop, guanabana, corosol, coracao de rainha, graviola, suirsaak, and zuursaak. The tree is a small evergreen and is the size of a peach tree. The fruit is very large and fleshy, sometimes weighing up to five pounds. The fruit is oval or heart shaped. The pulp is white and juicy with a slight mango like flavor.

Annona Muricata

The common names of Annona muricata are soursop, guanabana, corosol, coracao de rainha, graviola, suirsaak,…

Some of the common names of <I>Annona squamosa</i> are sugar apple, sweet sop, anon, and atta. The fruit is about the size of an orange. The pulp is yellowish white, creamy or custard like, very sweet and pleasantly flavored.

Annona Squamosa

Some of the common names of Annona squamosa are sugar apple, sweet sop, anon, and atta. The fruit is…

The leaf blades of </I>Anthurium andraeanum</I> are drooping. The flower spike is three to four inches long and yellowish with a white band.

Anthurium Andraeanum

The leaf blades of Anthurium andraeanum are drooping. The flower spike is three to four inches long…

The albus variety of <I>Antigonon Leptopus</I> has flowers that are nearly or quite white. Pictured is a plant grown under glass.

Albus Variety of Antigonon Leptopus

The albus variety of Antigonon Leptopus has flowers that are nearly or quite white. Pictured is a plant…

The common name of <I>Antirrhinum orontium</I> is small snapdragon. The flowers are small and purple or white. The leaves are linear.

Antirrhinum Orontium

The common name of Antirrhinum orontium is small snapdragon. The flowers are small and purple or white.…

The common name of <I>Antirrhinum majus</I> is common or large snapdragon. The flowers are large and come in many colors ranging from red to purple to white. Pictured is a young spike of a dwarf form.

Antirrhinum Majus

The common name of Antirrhinum majus is common or large snapdragon. The flowers are large and come in…

<I>Aphyllon uniflorum</I> has white or violet flowers. Each stem has one flower and is leafless. The plant is known as cancer-root.

Aphyllon Uniflorum

Aphyllon uniflorum has white or violet flowers. Each stem has one flower and is leafless. The plant…

<I>Apicra pentagona</I> has an erect stem that is six to twelve inches tall. The flowers are a greenish color. The leaves are somewhat triangular and are white dotted.

Apicra Pentagona

Apicra pentagona has an erect stem that is six to twelve inches tall. The flowers are a greenish color.…

Pictured are the bottom and top views of a blue pearmain apple.

Blue Pearmain Apple

Pictured are the bottom and top views of a blue pearmain apple.

The flowers of the apricot are pink-white. The flowers grow singly and precede the leaves.

Flowers of the Apricot

The flowers of the apricot are pink-white. The flowers grow singly and precede the leaves.

The stem of <I>Aquilegia alpina</I> is nearly one foot tall. The plant has two to five flowers. The flowers are blue, rarely pale or white.

Aquilegia Alpina

The stem of Aquilegia alpina is nearly one foot tall. The plant has two to five flowers. The flowers…

<I>Aquilegia glandulosa</I> is one to three flowered. The flowers are large and nodding. The flowers are lilac-blue topped with creamy white.

Aquilegia Glandulosa

Aquilegia glandulosa is one to three flowered. The flowers are large and nodding. The flowers are lilac-blue…

Pictured is a commanding white oak on a bank margin.

White Oak

Pictured is a commanding white oak on a bank margin.

White oak is an ideal shade tree.

White Oak

White oak is an ideal shade tree.

Pictured is a white pine sapling that has an injured tip due to the white pine weevil. The white pine weevil feeds exclusively beneath the bark of the terminal shoots of young trees.

Injured White Pine Sapling

Pictured is a white pine sapling that has an injured tip due to the white pine weevil. The white pine…

Pictured is the stem of a white pine tree attacked by the white pine blister-rust fungus, <I>Cronartium ribicola</I>. Illustrated is the fruiting stage in the process of rupturing the bark.

White Pine Tree Stem with Fungus

Pictured is the stem of a white pine tree attacked by the white pine blister-rust fungus, Cronartium…

Illustrated is the base of a young white pine tree attacked by <I>Armillaria mellea</I>. The mushroom <I>Armillaria mellea</I> can become parasitic, killing trees over large areas.

White Pine Tree Attacked by Armillaria Mellea

Illustrated is the base of a young white pine tree attacked by Armillaria mellea. The mushroom Armillaria…

<I>Fomes igniarius</I> is a shelf fungus that causes the white heart-rot of deciduous trees. Pictured is the nigricans variety. The lighter color represents the spore-bearing surface.

Nirgricans Variety of Fomes Igniarius

Fomes igniarius is a shelf fungus that causes the white heart-rot of deciduous trees. Pictured is the…

The common name of <I>Arbutus menziesii</I> is madrona. The tree occasionally grows one hundred feet tall. The leaves are rounded or slightly heart shaped at the base. The flowers are white and the fruit is bright orange-red.

Arbutus Menziesii

The common name of Arbutus menziesii is madrona. The tree occasionally grows one hundred feet tall.…

The <I>Arbutus arizonica</I> tree grows between forty and fifty feet tall. The trunk has light gray or nearly white bark. The fruit is either round or oblong.

Arbutus Arizonica

The Arbutus arizonica tree grows between forty and fifty feet tall. The trunk has light gray or nearly…

Bear berry is the common name of <I>Arctostaphylos uva-ursi</I>. The flowers are small, white and tinged with red. The leaves are used medicinally.

Bear Berry

Bear berry is the common name of Arctostaphylos uva-ursi. The flowers are small, white and tinged with…

<I>Arctotis grandis</I> forms a bushy clump between two and two and a half feet tall. The flowers are white or white and pale violet.

Arctotis Grandis

Arctotis grandis forms a bushy clump between two and two and a half feet tall. The flowers are white…

<I>Aregelia spectabilis</I> has leaves that are ten to fifteen inches long. The flowers are milky, pale blue.

Aregelia Spectabilis

Aregelia spectabilis has leaves that are ten to fifteen inches long. The flowers are milky, pale blue.

The common name of <I>Armeria vulgarism</I> is common thrift. The flowers are white, pink, or red. The leaves are linear.

Armeria Vulgaris

The common name of Armeria vulgarism is common thrift. The flowers are white, pink, or red. The leaves…

The common name of <I>Artemisia vulgaris</I> is mugwort. The leaves are white and cottony beneath but green above. There are many oblong, yellow flower heads.

Artemisia Vulgaris

The common name of Artemisia vulgaris is mugwort. The leaves are white and cottony beneath but green…

<I>Artemisia lactiflora</I> is a white flowered form of mugwort. It is a beautiful plant with fragrant foliage.

Artemisia Lactiflora

Artemisia lactiflora is a white flowered form of mugwort. It is a beautiful plant with fragrant foliage.

Jerusalem artichoke is the tuber of a sunflower. The flower produces white, edible tubers. It can be raw or boiled and served cold with oil and vinegar.

Tuber of Jerusalem Artichoke

Jerusalem artichoke is the tuber of a sunflower. The flower produces white, edible tubers. It can be…

<I>Arum italicum</I> is larger than the maculatum variety. The leaves are triangular and light veined. The flower is yellowish or white.

Arum Italicum

Arum italicum is larger than the maculatum variety. The leaves are triangular and light veined. The…

The tenuissimus variety of <I>Asparagus plumosus</I> is a wiry stemmed variety with fewer leaf-like branches. The plant has a distinct blue-green color.

Tenuissimus Variety of Asparagus Plumosus

The tenuissimus variety of Asparagus plumosus is a wiry stemmed variety with fewer leaf-like branches.…

<I>Asparagus asparagoides</I> is also known as smilax of florists. The stems are slender and branched. The flowers are greenish white.

Asparagus Asparagoides

Asparagus asparagoides is also known as smilax of florists. The stems are slender and branched. The…

The variegata variety of <I>Aspidistra lurida</I> has an alternation of green and white stripes making no two leaves exactly alike.

Variegata Variety of Aspidistra Lurida

The variegata variety of Aspidistra lurida has an alternation of green and white stripes making no two…

<I>Aster cordifolius</I> has a smooth stem with thin, rough, usually hairy leaves. The flowers heads are blue and numerous.

Aster Cordifolius

Aster cordifolius has a smooth stem with thin, rough, usually hairy leaves. The flowers heads are blue…

The comet type of China aster has very flat rays. The flowers are rose, white, or blue.

China Aster, the Comet Type

The comet type of China aster has very flat rays. The flowers are rose, white, or blue.

<I>Astilbe japonica</I> grows one to three feet tall. The flowers are white.

Astilbe Japonica

Astilbe japonica grows one to three feet tall. The flowers are white.

The stem of <I>Astilbe astilboides</I> grows two to three feet tall. The leaves are oval and oblong. The flowers are white and crowded in dense spikes.

Astilbe Astilboides

The stem of Astilbe astilboides grows two to three feet tall. The leaves are oval and oblong. The flowers…