289 illustrations of flowers and shrubs including: narcissus, nelumbo, nettle, nightshade, oleander, olive, opium, orchid, orpine, oxalis, and oxeye

Illustrated are nympheas in an effective and natural setting.

Nympheas

Illustrated are nympheas in an effective and natural setting.

Leaves small, mostly less than 15cm. long, heart-shaped; flowers white and less than 2.5cm across.

Nymphoides

Leaves small, mostly less than 15cm. long, heart-shaped; flowers white and less than 2.5cm across.

Also known as rhus diversiloba. It is a poisonous shrub located on the Pacific coast of North America that causes a rash on contact.

Poison Oak

Also known as rhus diversiloba. It is a poisonous shrub located on the Pacific coast of North America…

One of three unique species of plans belonging to the Oblata.

Feroniella Oblata

One of three unique species of plans belonging to the Oblata.

A unique species of plans belonging to the Oblata.

Feroniella Oblata

A unique species of plans belonging to the Oblata.

This flowering plant belongs to the honeysuckle family, commonly seen in the North Americas.

Symphoricarpos Occidentalis

This flowering plant belongs to the honeysuckle family, commonly seen in the North Americas.

"Ochranthe arguta. 1. grain of pollen; 2. perpendicular section of its pistil." -Lindley, 1853

Ochranthe

"Ochranthe arguta. 1. grain of pollen; 2. perpendicular section of its pistil." -Lindley, 1853

"Flowering Plant of Shortia galacifolia. a, the corolla, laid open." -Whitney, 1911

Oconee Bells

"Flowering Plant of Shortia galacifolia. a, the corolla, laid open." -Whitney, 1911

Species of an orchid; these flowers are usually seen in the southeastern parts of brazil.

Stanhopea Oculata

Species of an orchid; these flowers are usually seen in the southeastern parts of brazil.

<i>Odontoglossum cervantesii decorum</i> is an orchid with large flowers. The flowers are spotted inside and outside with bright red.

Odontoglossum Cervantesii Decorum

Odontoglossum cervantesii decorum is an orchid with large flowers. The flowers are spotted inside and…

Odontoglossum cervantesii flowers are one to two inches across. The flowers are rosy lilac barred at the base with crimson brown. Each spike is six inches high with three to five flowers.

Flower of Odontoglossum Cerbantesii

Odontoglossum cervantesii flowers are one to two inches across. The flowers are rosy lilac barred at…

Odontoglossum cirrhosum flowers are milk whitet with deep purplish violet dark spots on the sepals and petals. The sepals are lance shaped and end in bristles.

Odontoglossum Cirrhosum

Odontoglossum cirrhosum flowers are milk whitet with deep purplish violet dark spots on the sepals and…

The flowers of <i>odontoglossum citrosmum</i> are large and span around three inches across. The flowers range from white to rose in coloration and bloom in May and June. The plant is native to Guatemala.

Odontoglossum Citrosmum

The flowers of odontoglossum citrosmum are large and span around three inches across. The flowers range…

Odontoglossum crispum flowers have pure white sepals and petals and a yellow lip. The lip is spotted towards the front with blotches of reddish brown.

Odontoglossum Crispum

Odontoglossum crispum flowers have pure white sepals and petals and a yellow lip. The lip is spotted…

<i>Odontoglossum crispum</i> flowers are produced at any season of the year. The flowers are white and spotted with crimson are brown.

Odontoglossum Crispum

Odontoglossum crispum flowers are produced at any season of the year. The flowers are white and spotted…

The flowers of <i>odontoglossum crispum</i> bloom in crowded clusters. The leaves are a foot long. The plant is native to Colombia.

Odontoglossum Crispum Habit

The flowers of odontoglossum crispum bloom in crowded clusters. The leaves are a foot long. The plant…

Odontoglossum hallii flowers are pale yellow with large, chocolate brown patches. The flowers are about four inches across.

Flower of Odontoglossum Hallii

Odontoglossum hallii flowers are pale yellow with large, chocolate brown patches. The flowers are about…

Odontoglossum rossii flowers are one to two inches across. The petals are pure white with a few spots at their base. The scapes have two to five flowers. The flowers bloom in winter.

Habit and Detached Single Flower of Odontoglossum Rossii

Odontoglossum rossii flowers are one to two inches across. The petals are pure white with a few spots…

Violet native to Europe, bearing white flowers.

Viola Odorata

Violet native to Europe, bearing white flowers.

This is a large herbaceous perennial, usually grown to be used as an ornament.

Sicana Odorifera

This is a large herbaceous perennial, usually grown to be used as an ornament.

A genus of poisonous plants. It is commonly found in wet places including streamsides and ditches.

Oenanthe Crocota

A genus of poisonous plants. It is commonly found in wet places including streamsides and ditches.

The common name of oenthera is evening primrose. The acaulis variety has white flowers fading into red. The flowers bloom May to September. The plant grows six inches high.

Habit and Detached Leaf and Flower of Oenothera Acaulis

The common name of oenthera is evening primrose. The acaulis variety has white flowers fading into red.…

Pictured are the albicaulis and californica varieties of evening primrose. Albicaulis has white flowers while californica has flowers varying from white to pale pink.

Oenothera Albicaulis and Oenothera Californica

Pictured are the albicaulis and californica varieties of evening primrose. Albicaulis has white flowers…

Oenothera amoena rubicunda is a variety of evening primrose with rose flowers with four crimson spots. The flowers bloom in summer.

Flowering Branch of Oenothera Amoena Rubicunda

Oenothera amoena rubicunda is a variety of evening primrose with rose flowers with four crimson spots.…

The common name of oenothera biennis is common evening primrose. The lamarckiana variety has larger and finer flowers.

Oenothera Biennis Lamarckiana

The common name of oenothera biennis is common evening primrose. The lamarckiana variety has larger…

Oenothera exima is a variety of evening primrose with white flowers that are four inches in diameter. The flowers bloom in July.

Oenothera Exima

Oenothera exima is a variety of evening primrose with white flowers that are four inches in diameter.…

Oenthera Lady Albemarle has distinct, showy crimson flowers. It is a dwarf variety.

Oenothera Lady Albemarle

Oenthera Lady Albemarle has distinct, showy crimson flowers. It is a dwarf variety.

Oenothera missouriensis latifolia flowers are large and yellow. The leaves are broad.

Oenothera Missouriensis Latifolia

Oenothera missouriensis latifolia flowers are large and yellow. The leaves are broad.

Oenothera speciosa is a variety of evening primrose with white flowers that become reddish as they fade. The flowers bloom March to September.

Flowering Branch of Oenothera Speciosa

Oenothera speciosa is a variety of evening primrose with white flowers that become reddish as they fade.…

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal herb, and the leaves are commonly eaten by caterpillars. They reach up to 1 foot in height.

Pulmonaris Officinalis

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal…

Known as the purple betony, a perennial herb which may grow in excess of 65 centimeters.

Stachys Officinalis

Known as the purple betony, a perennial herb which may grow in excess of 65 centimeters.

"The castor oil plant belongs to an order whose affinities have not yet been accurately limited by botanists; but it is supposed to comprise at least one thousand five hundred species." -Lupton

The Castor Oil Plant

"The castor oil plant belongs to an order whose affinities have not yet been accurately limited by botanists;…

An ornamental tropical shrub.

Oleander

An ornamental tropical shrub.

"The Oleander is the common and sweet-scented oleander. They have lanceolate coriaceous leaves, with parallel veins and fine roseate flowers. The former is a native of India, now naturalized in many warm countries. Sweet-scented oleander is wild in Central India, Scinde, Afghanistan, and the outer Himalayas to 5,500 feet. Often cultivated in India, etc. All parts of the plants, especially the root, are poisonous."&mdash;(Charles Leonard-Stuart, 1911)

Oleander

"The Oleander is the common and sweet-scented oleander. They have lanceolate coriaceous leaves, with…

A class of beautiful evergreen shrubs, known as rose laurel in France, and as rose bay in England. It is native to India, but is now naturalized in many temperate and warm countries, though it requires protection during the winter.

Oleander

A class of beautiful evergreen shrubs, known as rose laurel in France, and as rose bay in England. It…

Oleander and rose bay are the common names of <i>nerium oleander</i>. It is native to the Mediterranean region.

Oleander

Oleander and rose bay are the common names of nerium oleander. It is native to the Mediterranean region.

Olearia gunnia flowers are white and bloom in September. The branches are hoary. Pictured is a flowering branch, branchlet, and flower head of olearia gunnia.

Olearia Gunniana

Olearia gunnia flowers are white and bloom in September. The branches are hoary. Pictured is a flowering…

"Flowering Branch of Oleaster (Elaeagnus angustifolia). a, fruit; b, section of same." -Whitney, 1911

Oleaster

"Flowering Branch of Oleaster (Elaeagnus angustifolia). a, fruit; b, section of same." -Whitney, 1911

Olive has been cultivated from the earliest times chiefly for its oil, which is obtained from the fruit by pressure.

olive

Olive has been cultivated from the earliest times chiefly for its oil, which is obtained from the fruit…

Omphalodes verna flowers are blue with a white throat. The flowers bloom March to May. The plant grows six inches tall.

Omphalodes Verna

Omphalodes verna flowers are blue with a white throat. The flowers bloom March to May. The plant grows…

Oncidium crispum flowers are one to two inches across. The flowers are a bright, rich, copper color and the lip is blotched with golden yellow. The flowers bloom in winter.

Flowers of Oncidium Crispum

Oncidium crispum flowers are one to two inches across. The flowers are a bright, rich, copper color…

Oncidium excavatum flowers are golden yellow and they are spotted and blotched at the base with rich, bright brown. This variety is native to Peru.

Oncidium Excavatum

Oncidium excavatum flowers are golden yellow and they are spotted and blotched at the base with rich,…

Oncidium luridum flowers are usually a dull yellow or olive green color splotched with brown.

Flower of Oncidium Luridum

Oncidium luridum flowers are usually a dull yellow or olive green color splotched with brown.

<i>Oncidium ornithorhynchum</i> flowers are soft rose-purple and one inch across. The flowers bloom in autumn and winter and are native to Mexico.

Oncidium Ornithorhynchum

Oncidium ornithorhynchum flowers are soft rose-purple and one inch across. The flowers bloom in autumn…

Butterfly plant is the common name of oncidium papilio. The flowers are pale, golden yellow barred with chesnut brown. The flowers sometimes resemble a butterfly in shape.

Habit and Detached Flower of Oncidium Papilio

Butterfly plant is the common name of oncidium papilio. The flowers are pale, golden yellow barred with…

<i>Oncidium serratum</i> blooms in the winter and is native to Peru. The flowers are numerous and three inches across. The flowers are yellow with brown spots.

Oncidium Serratum

Oncidium serratum blooms in the winter and is native to Peru. The flowers are numerous and three inches…

Oncidium serratum flowers are usually rich, bright brown with a yellow border. The margins are crisped or very serrated.

Flower of Oncidium Serratum

Oncidium serratum flowers are usually rich, bright brown with a yellow border. The margins are crisped…

<i>Oncidium tigrinum</i> blooms in winter and is native to Mexico. The flowers are a rich, reddish brown with spots of yellow.

Oncidium Tigrinum

Oncidium tigrinum blooms in winter and is native to Mexico. The flowers are a rich, reddish brown with…

<i>Oncidium varicosum rogersii</i> specimens have borne 150 flowers. The flowers are yellow with a few red bars at the base.

Oncidium Varicosum Rogersii

Oncidium varicosum rogersii specimens have borne 150 flowers. The flowers are yellow with a few red…

The sepals and petals of oncidium varicosum flowers are pale, dull green with dull brown. The lip is large and bright yellow. The scapes are strong, about three feet long.

Flowers of Oncidium Varicosum

The sepals and petals of oncidium varicosum flowers are pale, dull green with dull brown. The lip is…

Germinating onion, morre advanced; the chink at base of cotyledon opening for the protrusion of the plumule, consisting of a thread-shaped leaf.

Onion

Germinating onion, morre advanced; the chink at base of cotyledon opening for the protrusion of the…

Section of the base of germinating onion, showing plumule enclosed.

Onion

Section of the base of germinating onion, showing plumule enclosed.

Section of the base of germinating onion, showing plumule emerging.

Onion

Section of the base of germinating onion, showing plumule emerging.

Later stage of germinating onion, upper part cut off.

Onion

Later stage of germinating onion, upper part cut off.

Pictured is an onion in flower. The flowers bloom in early summer.

Onion

Pictured is an onion in flower. The flowers bloom in early summer.

"Longitudinal section of an onion leaf. sca, thickened base of leaf, forming a bulb-scale; s, thin sheath of leaf; bl, blade of leaf; int, hollow interior of blade." -Bergen, 1896

Onion Leaf

"Longitudinal section of an onion leaf. sca, thickened base of leaf, forming a bulb-scale; s, thin sheath…

Seed of an onion, in an early germination stage.

Onion-seed

Seed of an onion, in an early germination stage.

Ononis rotundiflora flowers are rose and grow on three flowered stems. The flowers bloom in summer. The leaves are roundish and toothed.

Habit and Detached Single Flower of Ononis Rotundiflora

Ononis rotundiflora flowers are rose and grow on three flowered stems. The flowers bloom in summer.…

The common name of onosma is golden drop. The stellulatum tauricum variety has yellow flowers that are about one and a half inches long. The flowers bloom in summer. The stems are branched.

Onosma Stellulatum Tauricum

The common name of onosma is golden drop. The stellulatum tauricum variety has yellow flowers that are…

Opium is commonly known for the hallucinogenic effects its flowers produce.

Opium

Opium is commonly known for the hallucinogenic effects its flowers produce.