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The common name of philadelphus coronarius is common mock orange or syringa. The flowers are white with a strong, orange-like scent. The flowers appear in May.

Flowering Branchlet of Philadelphus Coronarius

The common name of philadelphus coronarius is common mock orange or syringa. The flowers are white with…

Philadelphus gordonianus is a variety of mock orange. The flowers are white and scentless. The plant grows ten feet tall.

Flowering Branch of Philadelphus Gordonianus

Philadelphus gordonianus is a variety of mock orange. The flowers are white and scentless. The plant…

"Philesia buxifolia; 2. stigma of Lapageria rosea (Copihue); 3. its ovary cut across; 4. its ovule." -Lindley, 1853

Philesia and Copihue

"Philesia buxifolia; 2. stigma of Lapageria rosea (Copihue); 3. its ovary cut across; 4. its ovule."…

The flowers of philodendron selloum are deep green, bordered with white and white on the inside. The leaves are large, green, and long stalked.

Philodendron Selloum

The flowers of philodendron selloum are deep green, bordered with white and white on the inside. The…

The flowers of philodendron speciosum are purplish green on the outside and purplish red on the inside. The leaves are green and have a triangular shape.

Philodendron Speciosum

The flowers of philodendron speciosum are purplish green on the outside and purplish red on the inside.…

Corolla of a Phlox, with salver-shaped corolla.

Phlox

Corolla of a Phlox, with salver-shaped corolla.

The flowers of phlox drummondii are red, varying to rose, purple or white, with a darker eye. The flowers appear in August.

Inflorescence of Phlox Drummondii

The flowers of phlox drummondii are red, varying to rose, purple or white, with a darker eye. The flowers…

Phlox paniculata flowers are pink-purple, varying to white. The flowers bloom in August. The plant is erect, smooth, rough, or hairy.

Inflorescence of Phlox Paniculata

Phlox paniculata flowers are pink-purple, varying to white. The flowers bloom in August. The plant is…

Phlox reptans flowers are purple or violet and bloom in spring. It is a neat and dwarf growing species.

Phlox Reptans

Phlox reptans flowers are purple or violet and bloom in spring. It is a neat and dwarf growing species.

Phlox subulata frondosa is a very vigorous variety with lilac-rose flowers.

Habit and Detached Flower and Leaves of Phlox Subulata Frondosa

Phlox subulata frondosa is a very vigorous variety with lilac-rose flowers.

Phlox subulata nivalis is a white variety of moss pink.

Flowering Branches of Phlox Subulata Nivalis

Phlox subulata nivalis is a white variety of moss pink.

The common names of phlox subulata are ground or moss pink. The flowers are pinkish with a dark center. The flowers bloom in April.

Flowering Branch of Phlox Subulata

The common names of phlox subulata are ground or moss pink. The flowers are pinkish with a dark center.…

The common names of photinia japonica are Japan Medlar, Japan Quince, and Loquat. The flowers are white and bloom in autumn. The fruit is the size of a small apple.

Fruiting Branchlet of Photinia Japonica

The common names of photinia japonica are Japan Medlar, Japan Quince, and Loquat. The flowers are white…

Japan Medlar, Japan Quince, and Loquat are the common names of photinia japonica. The fruit is the size of a small apple and a pale, orange-red color. The plant grows between ten and twenty feet tall.

Inflorescence and Single Fruit of Photinia Japonica

Japan Medlar, Japan Quince, and Loquat are the common names of photinia japonica. The fruit is the size…

The common name of phygelius capensis is cape figwort. The flowers are scarlet and bloom in summer. The plant grows three feet tall.

Phygelius Capensis

The common name of phygelius capensis is cape figwort. The flowers are scarlet and bloom in summer.…

Phyllanthus angustifolius flowers are red and bloom in July. The stem is two feet high.

Branch of Phyllanthus Angustifolius

Phyllanthus angustifolius flowers are red and bloom in July. The stem is two feet high.

Phyllanthus chantrieri flowers are brick-red with pale yellow hairs. The flowers bloom in summer. Branches form a right angle with the stem.

Phyllanthus Chantrieri

Phyllanthus chantrieri flowers are brick-red with pale yellow hairs. The flowers bloom in summer. Branches…

The male flowers of phyllanthus salviaefolius are small and greenish. The female flowers are larger and tinted with red. The branches are much spreading.

Phyllanthus Salviaefolius

The male flowers of phyllanthus salviaefolius are small and greenish. The female flowers are larger…

Phyllocactus ackermanni flowers are rich crimson with shining petals. The flowers are six to eight inches in diameter.

Branch of Phyllocactus Ackermanni

Phyllocactus ackermanni flowers are rich crimson with shining petals. The flowers are six to eight inches…

The flowers of phyllocactus anguliger are three to five inches in diameter. The petals are white and the sepals are orange or yellowish. The stems are deeply angled.

Phyllocactus Anguliger

The flowers of phyllocactus anguliger are three to five inches in diameter. The petals are white and…

The petals of phyllocactus biformis flowers are narrow and about two or three inches long. The flowers are a pale, rosy pink color. The plant branches freely and is three feet tall.

Phyllocactus Biformis

The petals of phyllocactus biformis flowers are narrow and about two or three inches long. The flowers…

The longitudinal section of a flower of phyllocactus shpws the botanical characteristics. A represents the calyx tube, B shows the calyx lobes, C represents the petaloid calyx lobe, D shows the petals, E shows the style, and F represents the ovary.

Longitudinal Section of Flower of Phyllocactus

The longitudinal section of a flower of phyllocactus shpws the botanical characteristics. A represents…

The common name of physianthus albens is white bladder flower. The flower is white with a tinge of red. The flowers bloom in July.

Physianthus Albens

The common name of physianthus albens is white bladder flower. The flower is white with a tinge of red.…

"Pysostemon lanceolatum. 1. a flower of the natural size; 2. the calyx, stamens, and ovary; 3. the ripe fruit, with one valve separating; 4, a seed; 5. the same cut vertically, to show the incurved embryo." -Lindley, 1853

Physostemon lanceolatum

"Pysostemon lanceolatum. 1. a flower of the natural size; 2. the calyx, stamens, and ovary; 3. the ripe…

The common name of phyteuma is horned rampion. The charmelii variety has blue flowers in spherical heads. The flowers bloom May to August. The plant grows between six and twelve inches tall.

Phyteuma Charmelii

The common name of phyteuma is horned rampion. The charmelii variety has blue flowers in spherical heads.…

The common name of phyteuma is horned rampion. The humile variety has blue flowers in globose heads. The flowers bloom in July. The plant grows three inches tall.

Habit and Detached Flower of Phyteuma Humile

The common name of phyteuma is horned rampion. The humile variety has blue flowers in globose heads.…

The common names of phytolacca decandra are Virginian poke weed, pigeon-berry and red-ink plant. The flowers are white. In the autumn dark purple berries appear that are filled with crimson juice. The roots are large, fleshy, and poisonous.

Racemose Inflorescence of Phytolacca Decandra

The common names of phytolacca decandra are Virginian poke weed, pigeon-berry and red-ink plant. The…

Also known as Pontederia cordata. A blue plant with numerous spikes of blue flowers. It generally is found growing in shallow waters.

Pickerelweed

Also known as Pontederia cordata. A blue plant with numerous spikes of blue flowers. It generally is…

Picotee flowers are similar to carnations. They are distinguished by their ground color and are edged by a second color.

Picotee

Picotee flowers are similar to carnations. They are distinguished by their ground color and are edged…

A young pig eating flowers out of their pots.

Pig in Flower

A young pig eating flowers out of their pots.

An illustration of a Pilocarpus flower.

Pilocarpus Flower

An illustration of a Pilocarpus flower.

The flowers of pilocereus houlletii are violet with hints of red and yellow. The stem is strong and gray-green. The prickles are straw colored.

Pilocereus Houlletii

The flowers of pilocereus houlletii are violet with hints of red and yellow. The stem is strong and…

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…

"Brunonia sericea. 1. a complete flower; 2. the pistil; 3. a ripe fruit; 4. embryo." -Lindley, 1853

Blue Pincushion

"Brunonia sericea. 1. a complete flower; 2. the pistil; 3. a ripe fruit; 4. embryo." -Lindley, 1853

As it were of three grains or cells united; the lateral empty and light.

Pine Pollen

As it were of three grains or cells united; the lateral empty and light.

Smooth-leaved cayenne pineapple plants have purple flowers. The fruit is very large, cylindrical, and dark orange yellow. The flesh is pale yellow and highly flavored.

Smooth-Leaved Cayenne Pineapple

Smooth-leaved cayenne pineapple plants have purple flowers. The fruit is very large, cylindrical, and…

The common names of pinguicula vulgaris are bog violet and butter root. The flowers are violet and bloom May to July. The leaves are one to three inches long.

Pinguicula Vulgaris

The common names of pinguicula vulgaris are bog violet and butter root. The flowers are violet and bloom…

Typical form of Corolla. 16, Caryophyllaceous (pink).

Pink Flower

Typical form of Corolla. 16, Caryophyllaceous (pink).

The fimbriate petals of the flower of the Clove Pink (Dianthus caryophyllus), from the Caryophyllaceae family of pinks or carnations.

Clove Pink

The fimbriate petals of the flower of the Clove Pink (Dianthus caryophyllus), from the Caryophyllaceae…

Pistils united in St. John's Wort, (Gray, 1858).

Pistil

Pistils united in St. John's Wort, (Gray, 1858).

Pistil of Sand-Spurrey cut through lengthwise and magnified, (Gray, 1858).

Pistil

Pistil of Sand-Spurrey cut through lengthwise and magnified, (Gray, 1858).

Pistil and flower of Catchfly cut through lengthwise, (Gray, 1858).

Pistil

Pistil and flower of Catchfly cut through lengthwise, (Gray, 1858).

A pistil; with ovary, <em>a</em>, half cut away, to show the contained ovules; <em>b</em>, style; <em>c</em>, stigma.

Pistil

A pistil; with ovary, a, half cut away, to show the contained ovules; b, style; c,…

Compound 3-carpellary pistil of common St. John's-wort, cut across: the three styles separate.

Pistil of common St. John's-wort

Compound 3-carpellary pistil of common St. John's-wort, cut across: the three styles separate.

Pistil of a Sandwort, with vertical and transverse section of the ovary: free central placenta.

Pistil of Sandwort

Pistil of a Sandwort, with vertical and transverse section of the ovary: free central placenta.

Two simple carpals or pistil-leaves, united at the base only, cut across both above and below.

Pistil of Saxifrage

Two simple carpals or pistil-leaves, united at the base only, cut across both above and below.

The same of shrubby St. John's-wort; the three styles as well as ovaries here united into one.

Pistil of shrubby St. John's-wort

The same of shrubby St. John's-wort; the three styles as well as ovaries here united into one.

Compound 3-carpellary pistil of Tradescantia or Spiderwort; the three stigmas as well as styles and ovary completely coalescent into one.

Pistil of Spiderwort

Compound 3-carpellary pistil of Tradescantia or Spiderwort; the three stigmas as well as styles and…

Pistil of Anemone, cut in half, showing the ovary and ovule,(Gray, 1858).

Anemone Pistil

Pistil of Anemone, cut in half, showing the ovary and ovule,(Gray, 1858).

Eleven-celled pistil White Water-Lily, (Gray, 1858).

Water-lily Pistil

Eleven-celled pistil White Water-Lily, (Gray, 1858).

Pistillate flower of Moonseed.

Pistillate Moonseed

Pistillate flower of Moonseed.

"Heliamphora nutans. 1. the stamens and pistil; 2. the latter separate; 3. a cross section of the ovary; 4. a perpendicular section of a seed." -Lindley, 1853

Marsh Pitcher Plant

"Heliamphora nutans. 1. the stamens and pistil; 2. the latter separate; 3. a cross section of the ovary;…

Leaves of Pitcher-plant, one of them cut off, (Gray, 1858).

Pitcher-plant

Leaves of Pitcher-plant, one of them cut off, (Gray, 1858).

A lean-to plant house which is associated with the growth of ornamental plant and flowers.

Plant House

A lean-to plant house which is associated with the growth of ornamental plant and flowers.

An image of a strawberry plant in flower. There are numerous short Stamens that are readily accessible to insects.

Strawberry Plant

An image of a strawberry plant in flower. There are numerous short Stamens that are readily accessible…

An illustration of a plantain plant. The plantain is a crop in the genus Musa and is generally used for cooking, in contrast to the soft, sweet banana (which is sometimes called the dessert banana).

Plantain Flower

An illustration of a plantain plant. The plantain is a crop in the genus Musa and is generally used…

An illustration of a section of a plantain flower.

Plantain Flower (Section)

An illustration of a section of a plantain flower.

An illustration of a plantain plant flower and bract. In botany, a bract is a modified or specialized leaf. Bracts are ordinarily associated with reproductive structures (subtending flowers, inflorescence axes, or cone scales). They are ordinarily reduced in size relative to foliage leaves, or of a different color or texture from foliage leaves, or both.

Plantain Flower and Bract

An illustration of a plantain plant flower and bract. In botany, a bract is a modified or specialized…

<i>Plantago major</i>. "...a flower cluster or form of inflorescence in which the flowers are sessile (or apparently so) along an elongated, unbranched common axis, as in the well-known mullen and plantain." &mdash;Whitney, 1889 <p>Illustration of a spike from a Broadleaf Plantain.

Broadleaf Plantain - Spike

Plantago major. "...a flower cluster or form of inflorescence in which the flowers are sessile (or apparently…

"Plantago lanceolata. 1. flower and bract; 2. pistil; 3. ovary cut across; 4. seed; 5. section of it." -Lindley, 1853

Ribwort Plantain

"Plantago lanceolata. 1. flower and bract; 2. pistil; 3. ovary cut across; 4. seed; 5. section of it."…