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Ilex aquifolium argentea medio-picta is a green leaved variety of holly. The leaves are dark green at the edge with a large, central blotch of creamy white. The leave have strong spines.

Leaf of Ilex Aquifolium Argentea Medio-Picta

Ilex aquifolium argentea medio-picta is a green leaved variety of holly. The leaves are dark green at…

Ilex aquifolium bessonia is a green leaved variety of holly. The leaves are lighter green than most varieties. The leaves are spineless and less rigid.

Leaf of Ilex Aquifolium Bessonia

Ilex aquifolium bessonia is a green leaved variety of holly. The leaves are lighter green than most…

Ilex aquifolium crassifolia is a green leaved variety of holly. The leaves are dull green. The leaves are very thick with recurved tips and margins. The leaves have prominent, saw like teeth.

Leaf of Ilex Aquifolium Crassifolia

Ilex aquifolium crassifolia is a green leaved variety of holly. The leaves are dull green. The leaves…

Ilex aquifolim doningtonensis is a green leaved variety of holly. The margins of the leaves have few or no spines. The leaves are two inches long and three quarters inches broad.

Leaf of Ilex Aquifolium Doningtonensis

Ilex aquifolim doningtonensis is a green leaved variety of holly. The margins of the leaves have few…

Ilex aquifolium hendersoni is a green leaved variety of holly. The leaves are dark green with sunken veins.

Leaf of Ilex Aquifolium Hendersoni

Ilex aquifolium hendersoni is a green leaved variety of holly. The leaves are dark green with sunken…

Ilex aquifolium ovata is a green leaved variety of holly. The leaves are about two and a half inches long. The leaves have scarce, spiny teeth.

Leaf of Ilex Aquifolium Ovata

Ilex aquifolium ovata is a green leaved variety of holly. The leaves are about two and a half inches…

Ilex aquifolium pyramidalis is a green leaved variety of holly. The leaves are dark green. The leaves have six or eight spines on the same plane as the leaf.

Leaf of Ilex Aquifolium Pyramidalis

Ilex aquifolium pyramidalis is a green leaved variety of holly. The leaves are dark green. The leaves…

Ilex aquifolim tortuosa is a green leaved variety of holly. The leaves are about two inches long and one inch broad. The blade is sprially twisted once.

Leaf of Ilex Aquifolium Tortuosa

Ilex aquifolim tortuosa is a green leaved variety of holly. The leaves are about two inches long and…

Ilex dipyrena is a variety of holly. The leaves are oblong and growi on short stalks. The leaves are spiny and serrated.

Leaf of Ilex Dipyrena

Ilex dipyrena is a variety of holly. The leaves are oblong and growi on short stalks. The leaves are…

Spirally overlapping.

Imbricate

Spirally overlapping.

Impari-pinnate leaves are pinnate leaves having a terminal or odd leaflet.

Impari-Pinnate Leaf

Impari-pinnate leaves are pinnate leaves having a terminal or odd leaflet.

Cut sharply, irregularly, and more or less deeply.

Incised

Cut sharply, irregularly, and more or less deeply.

Peltate leaves are target shaped or shield like. Pictured is a peltate leaf of Indian cress.

Peltate Leaf of Indian Cress

Peltate leaves are target shaped or shield like. Pictured is a peltate leaf of Indian cress.

This shows an inflexed leaf.

Inflexed Leaf

This shows an inflexed leaf.

Also known as Quercus wislizeni. The branch of an Interior Live Oak tree, native to California.

Branch of Interior Live Oak

Also known as Quercus wislizeni. The branch of an Interior Live Oak tree, native to California.

Rolled inwardly toward the midrib.

Involute

Rolled inwardly toward the midrib.

This shows an involute leaf.

Involute Leaf Shape

This shows an involute leaf.

The leaves are deeply seven parted.

Leaf of Ipomoea Sinuata

The leaves are deeply seven parted.

This variety has deep vinous red stems, leafstalks, and principal veins. The leaves are green blotched with gold.

Habit and Detached Portion of Inflorescence with Leaf of Iresine Herbstii Auero-Reticulata

This variety has deep vinous red stems, leafstalks, and principal veins. The leaves are green blotched…

Leaves large (1cm wide or wider); flowers very showy.

Iris

Leaves large (1cm wide or wider); flowers very showy.

Also known as Quercus tomentella. The branch of an Island Oak tree, native to the coast of Caifornia.

Branch of Island Oak

Also known as Quercus tomentella. The branch of an Island Oak tree, native to the coast of Caifornia.

Leaves all from a hardened base or from a single point; base of leaves with spore sacs.

Isoetes

Leaves all from a hardened base or from a single point; base of leaves with spore sacs.

Sepals not pubescent or only slightly so; fruit a linear, two grooved capsule; leaves elliptic.

Itea

Sepals not pubescent or only slightly so; fruit a linear, two grooved capsule; leaves elliptic.

"Leaf of a diptych, Roman, probably about 4th century, South Kensington Museum collection." — The Encyclopedia Britannica, 1893

Ivory Carving

"Leaf of a diptych, Roman, probably about 4th century, South Kensington Museum collection." —…

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated. They are native to Japan.

Pyrus Japonica

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated.…

Pinnate leaflets are arranged along each side of a common petiole.

Pinnate Leaf of Jasmine

Pinnate leaflets are arranged along each side of a common petiole.

Leaves - simple; indeterminate in position because of their closeness, but arrange along the branches in two-leaved sheathed bunches. Leaf - needle-shape, one and three fourths to two and three fourths inches long, stiff, bluntish; on the outer side smooth and rounded; on the inner side flat, and rough downwards. Cones - one and three fourths to three inches long, usually single and pointing downward. Scales - tipped with a stiff, straight prickle. Bark - of the trunk, rough and blackish. Young branches smooth (in other pines scaly). Twigs - purplish. Found - from Long Island along the coast to South Carolina, and through eastern and Middle Kentucky to Southeastern Indiana; in sandy and generally barren soil. General Information - An evergreen tree fifteen to forty feet high, irregular in shape and with straggling, spreading, or drooping branches. The timber is very "pitchy," soft, and durable, but poor even for fuel. "Next to the Gray Pine, the Jersey Pine is the most uninteresting species of the United States." - Michaux, f.

Genus Pinus, L. (Pine)

Leaves - simple; indeterminate in position because of their closeness, but arrange along the branches…

Of the Composite family (Compositae), Joe-Pye-weed (Eupatorium purpureum)

Joe-Pye-Weed

Of the Composite family (Compositae), Joe-Pye-weed (Eupatorium purpureum)

This jug stands on a pedestal. It has a leaf design on its base, and human figures encircling the top. The handle is connect to a seated figure.

Jug

This jug stands on a pedestal. It has a leaf design on its base, and human figures encircling the top.…

Juglans regia elongata only differs from the common walnut tree in that the fruit of tree is very elongated.

Leaf and Nut of Juglans Regia Elongata

Juglans regia elongata only differs from the common walnut tree in that the fruit of tree is very elongated.

Plants stuff; rooting along the stem; leaves stiff and often fascicles.

Juncus

Plants stuff; rooting along the stem; leaves stiff and often fascicles.

Flowers or fruits individually manifest; parts in threes.

Juncus

Flowers or fruits individually manifest; parts in threes.

Sheaths at base of stem merely overlapping.

Juncus

Sheaths at base of stem merely overlapping.

Leaves narrow, mostly less than 1 cm.

Juncus

Leaves narrow, mostly less than 1 cm.

Also known as Amelanchier canadensis. The branch of a Juneberry bush, native to eastern North America, primarily Canada.

Branch of Juneberry

Also known as Amelanchier canadensis. The branch of a Juneberry bush, native to eastern North America,…

Flowers large, showy yellow; fruit a four angled capsule.

Jussiaea

Flowers large, showy yellow; fruit a four angled capsule.

Capsule or calyx tube long and slender, ovre 1.5cm long; stamens.

Jussiaea

Capsule or calyx tube long and slender, ovre 1.5cm long; stamens.

Flowers irregular, purplish.

Justicia

Flowers irregular, purplish.

In the manufacturing of jute, the jute fiber must first be softened. The softening machine consists of many pairs of fluted or corrugated rollers arranged in horizontal succession and driven with a reciprocating motion. The jute as it passes through may receive a sprinkling of oil ad water from automatic apparatus attached to the machine overhead, or it may be arranged in the layers and sprayed with oil after emerging from the softener, a process known as batching. In either case, the material is then allowed to lie a certain time in bulk, to permit of the fiber being thoroughly permeated with the oil.

Softening Process in the Manufacturing of Jute

In the manufacturing of jute, the jute fiber must first be softened. The softening machine consists…

The leaves of kaempferia gilbertii are tufted and deep green. The leaves are bordered by a band of white. The leaves have an oblong shape and taper to a point.

Kaempferia Gilbertii

The leaves of kaempferia gilbertii are tufted and deep green. The leaves are bordered by a band of white.…

Kava or Piper methysticum is a crop from the pepper family.

Kava

Kava or Piper methysticum is a crop from the pepper family.

Possessing a central ridge as a boat.

Keeled

Possessing a central ridge as a boat.

Also known as Betula kenaica. A species of birch tree.

Branch of Kenai Birch

Also known as Betula kenaica. A species of birch tree.

Leaves - unequally twice-compound (odd-feathered; leaflets very numerous - seven to thirteen on the different branches of the main leaf-stem; alternate; edge of leaflets entire. Outline - leaflets, egg-shape or oval. Apex - sharply taper-pointed. Base, slightly heart-shaped or rounded. Leaf-stem - in the autumn takes a violet tinge. Leaf - one and one half to three feet long, about one half as wide. Leaflets, one to two and one half inches long, of a dull green. Bark - of trunk, rough and scaly, separating in small and hard crosswise and backward-curled strips. Branchlets stout and not thorny. Flowers - in white spikes along the branches. May-July. Fruit - in large curved pods (Six to ten inches long, by two inches broad), pulpy within, of a reddish-brown color, flattened and hard. Each pod contains several hard, gray seeds one half of an inch or more in diameter. September, October. Found - in Franklin County, Pennsylvania (Porter), Western New York, westward and southward to Middle Tennessee. Not common. General information - A tree sixty to eighty feet high, or more, with a rather small and regular head. The fewness and the abruptness of its large branches give to it in the winder a dead and stumpy look, whence one of its common names. Its bruised and sweetened leaves are used at the South for poisoning flies. Its seeds were formerly used as a substitute for coffee.

Genus Gymnocladus, Lam. (Coffee Tree)

Leaves - unequally twice-compound (odd-feathered; leaflets very numerous - seven to thirteen on 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…

An illustration of a Lace-Leaf plant also known as a Lattice Leaf or Lace Plant. The Lace-Leaf plant is an aquatic plant with oblong leaf blades measuring up to 65 cm. The leaves of the plant lay beneath the water and are purely skeletal, with not tissue. The flowers grow above the water's surface.

Lace-leaf Plant

An illustration of a Lace-Leaf plant also known as a Lattice Leaf or Lace Plant. The Lace-Leaf plant…

Irregularly cut as if torn.

Lacerate

Irregularly cut as if torn.

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…

Shaped like a spear head, broadest near base, tapering to apex, and several times as long as broad.

Lanceolate

Shaped like a spear head, broadest near base, tapering to apex, and several times as long as broad.

Leaves - simple; indeterminate in position because of their closeness; arranged along the branches in many-leaved bunches without sheaths. Leaf - thread-like, one to two inches long, withering and falling in the autumn. Bark - smooth. Cones - about one half inch long; broad egg-shaped; green or violet when young, becoming purple and brownish as they ripen. Scales - thin, nearly round, their edges entire. Found - from Pennsylvania, Northern Indiana, and Northern Illinois through the Northern States and far northward. It grows usually in low, swampy land, where it often thickly covers large areas. General Information - A tree fifty to one hundred feet high (not evergreen), with a straight trunk and slender, horizontal branches. The wood is durable, hard, and very strong, and is largely used in ship-building, for posts, railroad ties, etc. The Indians and Canadians were accustomed to use the fibres of the Larch roots for sewing their bark canoes; and for tightening the seams, the gum of the Balsam Fir. Give me of your roots, O Tamarak! Of your fibrous roots, O Larch-Tree! My canoe to bind together, So to bind the ends together, That the water may not enter, That the river ma not wet me! Give me of your balm, O Fir-Tree! Of your balsam and your resin, So to close the seams together That the water may not enter, That the river may not wet me! And the Fir-Tree tall and sombre, Sobbed through all its robes of darkness, Answered wailing, answered weeping. 'Take my balm, O Hiawatha!'"

Genus Larix, Tourn. (Larch)

Leaves - simple; indeterminate in position because of their closeness; arranged along the branches in…

Leaves - simple; alternate; edge large-toothed, with the hollows rounded. Outline - wide egg-shape. Apex - sharp-pointed. Base - squared, or slightly rounded. Leaf/Stem - long and slender, and flattened sidewise. Leaf - three to five inches long, smooth on both sides when mature; white, and covered thickly with silky wool when young. Ribs, whitish and distinct above. Bark - of the trunk, smooth, and of a soft, light greenish-gray; when old, becoming somewhat cracked. On the young branches the bark is dark. Found - in Nova Scotia and New Brunswick, through the Northern States, along the Alleghany Mountains to North Carolina, and west to Wisconsin and Iowa. Rare at the South. common at the North. General Information - A tree forth to eight feet high, with open, crooked branches. Large quantities of the soft, white wood are ground into pulp for making paper. "In both this and the P. tremuloides, Michx., the leaves of young sprouts are often differently shaped and toothed, and much enlarged." -- (Porter.) Poplar wood, like other soft woods, is not usually esteemed for durability' but an old couplet, said to have been found inscribed on a poplar plank, teaches differently: "Though 'heart of Oak' be e'er so stout, Keep me dry, and I'll see him out."

Genus Populus, L. (Aspen, Poplar)

Leaves - simple; alternate; edge large-toothed, with the hollows rounded. Outline - wide egg-shape.…

An illustration of a broad leaf laurel.

Broad leaf laurel

An illustration of a broad leaf laurel.

Here is leaf that is shaped like the head of an arrow.

Leaf

Here is leaf that is shaped like the head of an arrow.

Here is leaf that is shaped like a lance.

Leaf

Here is leaf that is shaped like a lance.

Here is leaf that is shaped like a trowel.

Leaf

Here is leaf that is shaped like a trowel.

Here is leaf that is shaped like a fiddle.

Leaf

Here is leaf that is shaped like a fiddle.

Here is a leaf that is shaped like a shield.

Leaf

Here is a leaf that is shaped like a shield.

Here is a leaf that has a tendril on the end of it which clasps around whatever it touches.

Leaf

Here is a leaf that has a tendril on the end of it which clasps around whatever it touches.

This leaf is notched all around its edge.

Leaf

This leaf is notched all around its edge.

This leaf is notched all around its edge.

Leaf

This leaf is notched all around its edge.