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Karatas scheremetiewi flowers are white or blue. The leave are green. The floral leaves are bright red and are shorter than the ordinary leaves.

Karatas Scheremetiewi

Karatas scheremetiewi flowers are white or blue. The leave are green. The floral leaves are bright red…

The flowers of kerria japonica are orange yellow. The flowers grow alone at the end of the stems. The leaves are bright green and shining above and paler and slightly hairy beneath.

Flowering Branchlet of Kerria Japonica Flore-Pleno

The flowers of kerria japonica are orange yellow. The flowers grow alone at the end of the stems. The…

Plant featuring a basal rosette of leaves.

Streptocarpus Kewensis

Plant featuring a basal rosette of leaves.

"Kielmeyera rosea. 1. the pistil; 2. a transverse section of it; 3. a ripe fruit; 4. embryo." -Lindley, 1853

Kielmeyera

"Kielmeyera rosea. 1. the pistil; 2. a transverse section of it; 3. a ripe fruit; 4. embryo." -Lindley,…

"a, flower of Caltha palustris, showing the petaloid sepals s." -Whitney, 1911

Kingcup

"a, flower of Caltha palustris, showing the petaloid sepals s." -Whitney, 1911

"b, one of the sepals" of the flower of Caltha palustris, or Kingcup. -Whitney, 1911

Kingcup Sepal

"b, one of the sepals" of the flower of Caltha palustris, or Kingcup. -Whitney, 1911

Also known as Polygonum sachalinense. It is native to northeastern Asia and northern Japan. The flowers are a greenish-yellow color, with long-pointed ovate leaves.

Giant Knotweed

Also known as Polygonum sachalinense. It is native to northeastern Asia and northern Japan. The flowers…

Also known as Polygonum cuspidatum. It has hollow stems and has a similar appearance to bamboo. The flowers are small and white, and the leaves are in the shape of an oval.

Japanese Knotweed

Also known as Polygonum cuspidatum. It has hollow stems and has a similar appearance to bamboo. The…

Koellikeria argyrostigma flowers are white or cream colored spotted with red. The flowers bloom in the summer. The leaves are downy, deep rich velvety green with scattered, white spots.

Habit and Detached Single Flower of Koellikeria Argyrostigma

Koellikeria argyrostigma flowers are white or cream colored spotted with red. The flowers bloom in the…

The flowers of koelreuteria paniculata are yellow. There are many flowers on each branch. The leaves are deeply toothed.

Leaf and Portion of Inflorescence of Koelreuteria Paniculata

The flowers of koelreuteria paniculata are yellow. There are many flowers on each branch. The leaves…

A rosaceous tree that produces flowers

Kousso

A rosaceous tree that produces flowers

The common name of laburnum alpinum is Scotch Laburnum. The flowers are yellow and bloom in June. The shrub grows between fifteen and twenty feet tall.

Flowering Branchlet of Laburnum Alpinum

The common name of laburnum alpinum is Scotch Laburnum. The flowers are yellow and bloom in June. The…

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and remain throughout the winter.

Rhus Glabra Laciniata

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and…

"Lacistema serrulatum. 1. amentum in flower; 2. pistil and stamen. 3. pistil and calyx; 4. fruit in its state of dehiscence." -Lindley, 1853

Lacistema

"Lacistema serrulatum. 1. amentum in flower; 2. pistil and stamen. 3. pistil and calyx; 4. fruit in…

"Lady's Slipper is a genus of plants. The genus is remarkable for the large inflated lip of the corolla. Several very beautiful species are natives of the colder parts of North America."—(Charles Leonard-Stuart, 1911)

Lady's Slipper

"Lady's Slipper is a genus of plants. The genus is remarkable for the large inflated lip of the corolla.…

Style of a Lady's Slipper (Cypripedium), and stamens united with it; the anther of the two good stamens; an abortive stamen, what should be its anther changed into a petal-like body; the stigma.

Lady's Slipper

Style of a Lady's Slipper (Cypripedium), and stamens united with it; the anther of the two good stamens;…

The flowers of laelia albida are very fragrant. The sepals and petals are a mealy white. The lips is white or pale pink, streaked in the center with lines of yellow.

Flower of Laelia Albida

The flowers of laelia albida are very fragrant. The sepals and petals are a mealy white. The lips is…

The sepals are the three narrower parts situated behind, and overlapped by, the petals. The dark, central spot is the opening of the nectary.

Flower of Laelia Albida

The sepals are the three narrower parts situated behind, and overlapped by, the petals. The dark, central…

The flowers of laelia anceps are very fragrant and are two to four inches across. The sepals and petals are a rose lilac color. The lip is deep purple shaded with lilac. The scape has three to six flowers.

Flower of Laelia Anceps

The flowers of laelia anceps are very fragrant and are two to four inches across. The sepals and petals…

Lagenaria vulgaris is commonly known as the bottle gourd. The flowers are large and white. The fruit is shaped like a bottle. The fruit is a pale yellow color when ripe.

Flowering Branch and Fruit of Lagenaria Vulgaris

Lagenaria vulgaris is commonly known as the bottle gourd. The flowers are large and white. The fruit…

Lagurus ovatus flowers are a woolly texture. The flowers bloom June to September.

Lagurus Ovatus

Lagurus ovatus flowers are a woolly texture. The flowers bloom June to September.

Lamium album (White Deadnettle) is a flowering plant in the family Lamiaceae, native throughout Europe and western Asia, growing in a variety of habitats from open grassland to woodland, generally on moist, fertile soils. It is a herbaceous perennial plant growing to 50-100 cm tall, with green, four-angled stems. The leaves are 3-8 cm long and 2-5 cm broad, triangular with a rounded base, softly hairy, and with a serrated margin and a petiole up to 5 cm long; they appear superficially similar to those of the Stinging nettle Urtica dioica but do not sting, hence the common name "dead nettle". The flowers are white, produced in whorls ('verticillasters') on the upper part of the stem, the individual flowers 1.5-2.5 cm long

Lamium Album

Lamium album (White Deadnettle) is a flowering plant in the family Lamiaceae, native throughout Europe…

Lamium album (also known as the white dead-nettle, or archangel) is a member of the Lamium, a genus of Labiatæ, whose flowers are marked by possessing four stamens longer than the corolla tube, a bell-shaped calyx with five teeth, and a two-lipped corolla, the upper lip being arched, the lower trifid and spreading. It has been naturalized in America and has a square stem and white flowers with black stamens.

Lamium Album

Lamium album (also known as the white dead-nettle, or archangel) is a member of the Lamium, a genus…

Lapageria rosea flowers are a rich, rosy crimson. The flowers usually grow alone on each stem.

Lapageria Rosea

Lapageria rosea flowers are a rich, rosy crimson. The flowers usually grow alone on each stem.

Larch, or Larix, is a genus of hardy, deciduous, coniferous trees of very graceful habit. They bear monoecious flowers, the male catkins being small and oval, whilst the female ones are much longer. The leaves are bright green, linear, soft, and usually produced in short bundles on each side of the spray. They appear very early in the spring. The timber, which is very hard and tough, is much used in shipbuilding and for railway sleepers, and in cabinet work is capable of taking a very high polish. The species most commonly planted is 'L. europaea', whcich grows to about 100 ft in height. Other species are 'L. occidentalis', a tall and handsome American tree and 'L. laricina', the tamarack, or hackmatack, of North America. This is a straggling tree, most common in swampy soils, with smaller cones than has the the European species. It reaches a height of 70 ft., and the wood is valuable for the same purposes as that of other larches. (1. Scale of cone with two seeds; 2. anther)

Larch, Cone and Flowers (male and female)

Larch, or Larix, is a genus of hardy, deciduous, coniferous trees of very graceful habit. They bear…

Flower of Larkspur, (Gray, 1858).

Larkspur

Flower of Larkspur, (Gray, 1858).

Four petals of Larkspur, (Gray, 1858).

Larkspur

Four petals of Larkspur, (Gray, 1858).

The larkspur (Consolida) is a flowering plant of the buttercup family.

Larkspur

The larkspur (Consolida) is a flowering plant of the buttercup family.

The Delphinium tricorne or Dwarf Larkspur: "1. petals and stamens; 2. carpels; 3. a branch of ripe fruit." -Lindley, 1853

Dwarf Larkspur

The Delphinium tricorne or Dwarf Larkspur: "1. petals and stamens; 2. carpels; 3. a branch of ripe fruit."…

"Melastoma polyanthum. 1. flower; 2, 2. stamens; 3. base of anther; 4. fruit; 5. section of ditto; 6. seed." -Lindley. 1853

Native Lassiandra

"Melastoma polyanthum. 1. flower; 2, 2. stamens; 3. base of anther; 4. fruit; 5. section of ditto; 6.…

The common name of lathyrus odoratus is sweet pea. The flowers are very fragrant and come in various colors. Each penduncle has two or three flowers.

Portion of Flowering Stem of Lathyrus Odoratus

The common name of lathyrus odoratus is sweet pea. The flowers are very fragrant and come in various…

The flowers of lathyrus sylvestris are red and variegated with pale crimson, violet, and tints of green. Each penduncle has three to eight flowers.

Portion of Flowering Stem of Lathyrus Sylvestris

The flowers of lathyrus sylvestris are red and variegated with pale crimson, violet, and tints of green.…

"1. Leaf of Ouvirandra fenestralis; 2. a flower cut open; 3. section of a ripe carpel of O. Bernieriana; 4, 5. embryo in different positions: the thicker part is cotyledon, the smaller the plumule." -Lindley, 1853

Lattice Leaf Plant

"1. Leaf of Ouvirandra fenestralis; 2. a flower cut open; 3. section of a ripe carpel of O. Bernieriana;…

Flower of Laurel-Magnolia, (Gray, 1858).

Laurel

Flower of Laurel-Magnolia, (Gray, 1858).

The Laurel cone of fruit, the seeds hanging as they drop, (Gray, 1858).

Laurel

The Laurel cone of fruit, the seeds hanging as they drop, (Gray, 1858).

"Cassytha filiformis. 1. a flower; 2. a fruit; 3. a section of it transversely." -Lindley, 1853

Laurel Dodder

"Cassytha filiformis. 1. a flower; 2. a fruit; 3. a section of it transversely." -Lindley, 1853

The common name of laurus nobilis is common laurel or sweet bay tree. The flowers are yellow and inconspicuous. The berries are a very dark purple and become ripe in October.

Fruiting Twig, Inflorescence, and Fruits of Laurus Nobilis

The common name of laurus nobilis is common laurel or sweet bay tree. The flowers are yellow and inconspicuous.…

The common name of lavatera arborea is tree mallow. The flowers are pale purple Variegata is a showy, garden form with variegated leaves.

Lavatera Arborea Variegata

The common name of lavatera arborea is tree mallow. The flowers are pale purple Variegata is a showy,…

Lavatera trimestris flowers are rose colored. The flowers bloom in the summer. The plant grows between three and six feet.

Flowering Branch of Lavatera Trimestris

Lavatera trimestris flowers are rose colored. The flowers bloom in the summer. The plant grows between…

"Polygonaceae, a natural order of Dicotyledons, containing 30 genera with about 700 species, chiefly in the north temperate zone, and represented in Great Britain by three genera. They are mostly herbs characterized by the union of the stipules into a sheath or ocrea, which protects the younger leaves in the bud stage." —Encyclopaedia Britannica Company, 1910

Stem and Leaf Part of Polygonum

"Polygonaceae, a natural order of Dicotyledons, containing 30 genera with about 700 species, chiefly…

"Leschenaultia splendens. 1. calyx, stamens, and style, with stigma and indusium, all magnified." -Lindley, 1853

Lechenaultia

"Leschenaultia splendens. 1. calyx, stamens, and style, with stigma and indusium, all magnified." -Lindley,…

Leschenaultia biloba or the blue lechenaultia is a flowering plant of the Goodeniaceae family.

Blue Lechenaultia

Leschenaultia biloba or the blue lechenaultia is a flowering plant of the Goodeniaceae family.

Pictured are the orders of Lecythidaceae, Rhizophoraceae, Combretaceae, Myrtaceae, and Melastomaceae. The flowers of these orders that are illustrated include (1) lecythis, (2) rhizophora, (3) combretum, (4) jambosa, (5) eucalyptus, and (6) melastoma.

Orders of Lecythidaceae, Rhizophoraceae, Combretaceae, Myrtaceae, and Melastomaceae

Pictured are the orders of Lecythidaceae, Rhizophoraceae, Combretaceae, Myrtaceae, and Melastomaceae.…

"Lecythis ovata. 1. a flower divided perpendicularly; 2. a stamen." -Lindley, 1853

Lecythis

"Lecythis ovata. 1. a flower divided perpendicularly; 2. a stamen." -Lindley, 1853

"An annual plant of the same genus with tares, a native of countries near the Mediterranean, and which has been cultivated from the earliest times, yielding an esteemed kind of pulse." — Chambers, 1881

Lentil

"An annual plant of the same genus with tares, a native of countries near the Mediterranean, and which…

Leontice altaica flowers are about twelve per plant. The flowers bloom in April. The plant grows between three and six inches tall.

Habit, Detached Leaf, and Portion of Inflorescence of Leontice Altaica

Leontice altaica flowers are about twelve per plant. The flowers bloom in April. The plant grows between…

The common name of leontopodium alpinum is Edelweiss. The flowers heads grow at the end of the stems. The plant grows six inches tall.

Leontopodium Alpinum

The common name of leontopodium alpinum is Edelweiss. The flowers heads grow at the end of the stems.…

"Leptolaena multiflora. 1. a perpendicular section of its flower; 2. a diagram of its structure; 3. a section of its seed." -Lindley, 1853

Leptolaena

"Leptolaena multiflora. 1. a perpendicular section of its flower; 2. a diagram of its structure; 3.…

Leptospermum laevigatum flowers are white. The flowers grow alone on each stem, sometimes with two on each stem. The shrubs grow between twenty and thirty feet tall.

Flowering Branchlet of Leptospermum Laevigatum

Leptospermum laevigatum flowers are white. The flowers grow alone on each stem, sometimes with two on…

A plant which grows peculiar white fruits.

Pyrus Leucocarpa

A plant which grows peculiar white fruits.

Leucocoryne ixiodes flowers are white or pale blue. The umbels have four to six flowers. The plant grows about one foot tall.

Leucocoryne Ixiodes

Leucocoryne ixiodes flowers are white or pale blue. The umbels have four to six flowers. The plant grows…

These are detached flower heads of two different varieties of leucocoryne ixiodes. One flower head has entire segments. The other flower head has toothed segments.

Detached Flower Heads of Two Varieties of Leucocoryne Ixiodes

These are detached flower heads of two different varieties of leucocoryne ixiodes. One flower head has…

The common name of leucoium aestivum is Summer Snowflake. The flowers are pure white and about one inch long. Each cluster has four to eight flowers.

Leucoium Aestivum

The common name of leucoium aestivum is Summer Snowflake. The flowers are pure white and about one inch…

The common name of leucoium vernum is Spring Snowflake. The flowers are white with green spots on the tips of the segments. The flowers droop at the tops of the stems.

Habit and Detached Flower of Leucoium Vernum

The common name of leucoium vernum is Spring Snowflake. The flowers are white with green spots on the…

Flowers of Leucolaena rotundifolia, from the Apiaceae family.

Leucolaena

Flowers of Leucolaena rotundifolia, from the Apiaceae family.

Lewisia reiviva flowers are pink with a nearly white center. The flowers are about three to four inches across. The roots of the plant are edible.

Lewisia Rediviva

Lewisia reiviva flowers are pink with a nearly white center. The flowers are about three to four inches…

Leycesteria formosa flowers are white with a tinge of purple. The plant grows between four and six feet tall.

Flowering Branch of Leycesteria Formosa

Leycesteria formosa flowers are white with a tinge of purple. The plant grows between four and six feet…

The common names of liatris are blazing star and button snake root. The spicata variety has purple flowers heads that grow in spikes six to fifteen inches long. The entire plant is one to two feet tall.

Habit and Detached Flower Head of Liatris Spicata

The common names of liatris are blazing star and button snake root. The spicata variety has purple flowers…

Libertia formosa flowers are white. The leaves are linear and sword shaped. The stem is sixteen inches high.

Habit and Portion of Detached Inflorescence of Libertia Formosa

Libertia formosa flowers are white. The leaves are linear and sword shaped. The stem is sixteen inches…

The flowers are lietzia brasiliensis are green, richly mottled with brown. The leaves are hairy and taper at both ends.

Habit, Detached Leaf, Flower, and Capsule of Lietzia Brasiliensis

The flowers are lietzia brasiliensis are green, richly mottled with brown. The leaves are hairy and…