ClipArt ETC
Leaves small, mostly under 3cm long; usually with black dots visible with a lens covering them.

Gratiola

Leaves small, mostly under 3cm long; usually with black dots visible with a lens covering them.

Also known as Betula populifolia. The branch of a Gray Birch tree, native to northeast North America.

Branch of Gray Birch

Also known as Betula populifolia. The branch of a Gray Birch tree, native to northeast North America.

Leaves - simple; indeterminate in position because of their closeness, but arranged along the branches in two-leaved, sheathed bunches. Leaf - needle-shape, about one inch long, pointed, stiff, curved, rounded on the back, grooved above. Cones - nearly two inches long, gray, usually in pairs, and curved like small horns, with a peculiar habit of always pointing in the same direction as the branches. Scales - blunt, smooth, not armed with points or knobs. Found - along the northern frontier of the United States and far northward. Its best growth is north of Lake Superior. General Information - A small evergreen tree, or often a shrub, five to thirty feet high, with long, spreading branches, and light, soft wood that is of but slight value.

Genus Pinus, L. (Pine)

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

Also known as Alnus tenuifolia. The branch of a Grey Alder tree, native across the cooler parts of the Northern Hemisphere.

Branch of Grey Alder

Also known as Alnus tenuifolia. The branch of a Grey Alder tree, native across the cooler parts of the…

"Branch of Gulfweed (Sargassum bacciferum). a, vesicle with leaf; b, mucronate vesicle." -Whitney, 1911

Gulfweed Branch

"Branch of Gulfweed (Sargassum bacciferum). a, vesicle with leaf; b, mucronate vesicle." -Whitney, 1911

Root red.

Gyrotheca

Root red.

Leaves smaller; flowers individually small, in terminal spike-like clusters.

Habenaria

Leaves smaller; flowers individually small, in terminal spike-like clusters.

Leaves - simple; alternate; edge sharp-toothed, but entire at the base. Outline - obliquely egg-shaped, very one-sided. Apex - taper-pointed. Base - usually somewhat heart-shaped, or slightly pointed or rounded. Leaf - two to three inches long, one to two inches wide; rough. Bark - of the trunk, rough; sometimes much crumpled. Fruit - about the size of a pea; solitary; drooping from the bases of the leaf-stems, on stems once or twice as long as the leaf-stems; rounded; pulp thin, sweet, and edible; purplish red; ripe in September. Found - from the valley of the St. Lawrence westward and southward. General Information - A tree fifteen to thirty feet high (but much larger at the South), most common, and reaching its finest growth in the basin of the Mississippi. It is very variable in size and in the shape and texture of its leaves. Variety crassifolia is sometimes found, in which the leaves are thicker and usually toothed all around. Hackberry is an ancient name for lotus.

Genus Celtis, L. (Hackberry)

Leaves - simple; alternate; edge sharp-toothed, but entire at the base. Outline - obliquely egg-shaped,…

The door handle is used to open or close a door. This door handle has a leaf design.

Door Handle

The door handle is used to open or close a door. This door handle has a leaf design.

<i>Spiraea tomentosa</i>. Also called Steeplebush and Meadowsweet, this plant grows up to four feet high. This illustration shows the leaf of the plant.

Hardhack Leaf

Spiraea tomentosa. Also called Steeplebush and Meadowsweet, this plant grows up to four feet high. This…

Like sagittate but with lobes diverging.

Hastate

Like sagittate but with lobes diverging.

The hastate leaf is formed like the head of a halbert.

Hastate Leaf

The hastate leaf is formed like the head of a halbert.

A dense cluster of sessile or almost sessile flowers borne on a very short axis.

Head

A dense cluster of sessile or almost sessile flowers borne on a very short axis.

Part of stem, leaf and umbel of Poison-Hemlock.

Poison Hemlock

Part of stem, leaf and umbel of Poison-Hemlock.

Umbel of Poison-Hemlock.

Poison Hemlock

Umbel of Poison-Hemlock.

Magnified flower of Poison-Hemlock.

Poison Hemlock

Magnified flower of Poison-Hemlock.

Magnified fruit of Poison-Hemlock.

Poison Hemlock

Magnified fruit of Poison-Hemlock.

Magnified fruit of Poison-Hemlock, cut in half.

Poison Hemlock

Magnified fruit of Poison-Hemlock, cut in half.

Leaves - simple; indeterminate, in position because of their closeness; arranged singly in two flat distinctly opposite ranks up and down the branchlets. Leaf - one half inch long, narrow; blunt sometimes minutely toothed toward the apex; flat; green above; silvery white beneath. Bark - reddish and scaly; when old, somewhat roughened by long, shallow furrows. Cones - very small (three fourths of an inch long); drooping; oval or egg-shape. Scales - few, thin, rounded and entire. The seed with the wing is about three fourths the length of the scale. The cone does not fall apart when ripe. Found - from Southern New Brunswick and the Valley of the St. Lawrence through the Northern States to Delaware, and along the Alleghany Mountains to Alabama. Common northward, often forming large forests. General Information - An evergreen tree, sixty to eighty feet high, irregular in outline, very graceful, especially when young, with light and delicate foliage and horizontal or drooping branches. The timber is very coarse; the bark much used for tanning, and with medicinal qualities.

Genus Tsuga, Carr. (Hemlock)

Leaves - simple; indeterminate, in position because of their closeness; arranged singly in two flat…

The common names of heracleum are cow parsley and cow parsnip. The leaves of the setosum variety are five lobed.

Leaf of Heracleum Setosum

The common names of heracleum are cow parsley and cow parsnip. The leaves of the setosum variety are…

A stout fern with light brown scales. The fronds of this fern range between 3 and 6 feet in length, and 2 feet in width.

Polypodium Heracleum

A stout fern with light brown scales. The fronds of this fern range between 3 and 6 feet in length,…

Stem finely pubescent, flowers 3-4 mm long.

Herpestris

Stem finely pubescent, flowers 3-4 mm long.

This fern has broader, oblong fronds in comparison to the Polypodium lingua, whose fronds are between 4 and 8 inches in lngeth, and 1 to 4 inches in width.

Polypodium Lingua Heteractis

This fern has broader, oblong fronds in comparison to the Polypodium lingua, whose fronds are between…

Leaves without midribs evident when examined against transmitted light; flowers yellow.

Heteranthera

Leaves without midribs evident when examined against transmitted light; flowers yellow.

Leaves entire; veins of leaf nearly parallel.

Heteranthera

Leaves entire; veins of leaf nearly parallel.

Flowers solitary; leaves small, less than 5 cm long.

Heteranthera

Flowers solitary; leaves small, less than 5 cm long.

Base of petiole not expanded; plants large, 5 dm tall or taller.

Hibiscus

Base of petiole not expanded; plants large, 5 dm tall or taller.

Plant large, over 5dm tall; flowers large, white, pink, or purplish.

Hibiscus

Plant large, over 5dm tall; flowers large, white, pink, or purplish.

Large leaves, over 5 cm broad; flowers large, over 5cm across.

Hibiscus

Large leaves, over 5 cm broad; flowers large, over 5cm across.

This gothic hinge comes from a door of a cabinet in a town-hall in Zwolle, Netherlands. It is a strap-hinge that terminates as a leaf.

Gothic Hinge

This gothic hinge comes from a door of a cabinet in a town-hall in Zwolle, Netherlands. It is a strap-hinge…

The gothic hinge is a strap-hinge that terminates as a leaf.

Gothic Hinge

The gothic hinge is a strap-hinge that terminates as a leaf.

This plain termination of hinge is a 16th century design. It terminates as a leaf.

Plain Termination of Hinge

This plain termination of hinge is a 16th century design. It terminates as a leaf.

This plain termination of hinge is a 16th century design. It terminates as a leaf.

Plain Termination of Hinge

This plain termination of hinge is a 16th century design. It terminates as a leaf.

This termination of hinge is found in a town-hall in Munster, Germany. It terminates as a leaf.

Termination of Hinge

This termination of hinge is found in a town-hall in Munster, Germany. It terminates as a leaf.

This termination of hinge is found in a town-hall in Munster, Germany. It terminates as a leaf.

Termination of Hinge

This termination of hinge is found in a town-hall in Munster, Germany. It terminates as a leaf.

This termination of hinge is found in Gelnhausen, Germany. It is a 15th century design that terminates as a leaf.

Termination of Hinge

This termination of hinge is found in Gelnhausen, Germany. It is a 15th century design that terminates…

This illustration shows a skeleton leaf of Holly.

Skeleton Leaf (Holly)

This illustration shows a skeleton leaf of Holly.

Leaves - compound; )even-feathered, leaflets, ten to twenty-two or more, usually about fourteen), sometimes twice compound; alternate; edge of leaflets entire as seen above, but as seen below often remotely and slightly toothed. Outline of leaflet - long oval or long egg-shape. Base - and narrowed. Apex - rounded. Leaf/Stem - and very short. Leaflet/Stem - downy. Leaflets - three fourths to one and a half inches long; about one third as wide. Often several of them (one to three) are partly or wholly divided into smaller leaflets. Surfaces smooth and shining. Bark - of trunk, gray, and much less rough than that of the common Locust (which has a somewhat similar leaf); branchlets brown and often warty. The branches and the trunk, excepting in very young and quite old trees, are usually thickly covered with spines, two to four inches long, which are curved at the base, often two- to three-branches, and of a reddish-brown color. Flowers - small and greenish. Fruit - a long, flat pod (nine to eighteen inches long) reddish; somewhat twisted, and filled between the seeds with a pulp which at first is sweet (whence the name "Honey" Locust) but which soon becomes sour. The seeds are flat, hard, and brown. Found - native in Pennsylvania, westward and southward, but also somewhat naturalized and widely introduced northward. General Information - A tree sometimes seventy feet high, with wide-spreading and graceful branches, and light and delicate foliage. It is often used as a hedge plant. A variety entirely bare of thorns (var. inermis) is sometimes found; also a variety (var. brachycarpos) with shorter fruit and thorns.

Genus Gleditschia, L. (Honey Locust)

Leaves - compound; )even-feathered, leaflets, ten to twenty-two or more, usually about fourteen), sometimes…

Also known as Salix hookeriana. The branch of a Hooker's Willow tree, native to the west coast of North America.

Branch of Hooker's Willow

Also known as Salix hookeriana. The branch of a Hooker's Willow tree, native to the west coast of North…

"Twining stem of hop." -Bergen, 1896

Hop

"Twining stem of hop." -Bergen, 1896

Leaves - simple; alternate; edge very sharply and slightly irregularly and unequally toothed. Outline - long oval or long egg-shape. Apex - taper-pointed. Base - slightly heart-shaped. Leaf/Stem - about one fourth inch long, and often rough. Leaf - usually three to four inches long, and about half as wide, but with many smaller leaves of varying size on the same branch; smoothish above, paler and somewhat downy below. Ribs - The straight ribs and their angles hairy. Bark - of trunk, brownish or dark gray, and remarkable for being finely furrowed up and down, with the ridges broken into three - to four-inch lengths. These divisions are narrower than on any other rough-barked tree, and they become narrower and finer as the tree grows older. The new shoots are reddish green and dotted with brown; the younger branches purplish-brown and dotted with white or gray. When the branch is two to three inches thick, its bark becomes grayish and begins to crack. Fruit - in long oval, drooping clusters, resembling those of the hop-vine, with long, unlobed scales that lap each other like shingles. August, September. Found - oftenest on dry hill-sides. Common North, South, and West, especially in Southern Arkansas. General Information - A tree twenty to thirty feet high, with white, very strong, and compact wood. It would be very valuable, if it were more abundant and of larger growth.

Genus ostrya, Scop. (Hop-Hornbeam)

Leaves - simple; alternate; edge very sharply and slightly irregularly and unequally toothed. Outline…

Leaves - simple; alternate; edge very sharply and quite irregularly and unevenly toothed. Outline - long egg-shape, or reverse long egg-shape. Apex - taper-pointed. Base - rounded or slightly heart-shaped. Leaf/Stem - about one half inch long, slender and smooth, or slightly hairy. Leaf - usually three to four inches long, and about half as wide, but with many smaller leaves of varying size on the same branch; nearly smooth, slightly hairy on the straight and distinct ribs and in their angles. Bark - of trunk, a deep bluish-gray or slate; smooth, but often marked up and down with irregular ridges, which run from each side of the lower branches. The new shoots are somewhat hairy, and brownish or purple; the older branchlets, an ashy-gray color, with a pearly luster. Fruit - in loose drooping cluster, with leaf-like scales that are strongly three-lobed and placed in pairs base to base. October. Found - along streams and in swamps. Quite common North, South, and West; northward often only as a low shrub. General Information - A small tree or shrub, usually ten to twenty feet high, but in the southern Alleghany Mountains sometimes reaching a height of fifty feet. Its wood is white and very compact and strong.

Genus Carpinus, L. (Hornbeam)

Leaves - simple; alternate; edge very sharply and quite irregularly and unevenly toothed. Outline -…

Submerged leaves gathered along a few centimeters of the stem; flower stalks inflated.

Hottonia

Submerged leaves gathered along a few centimeters of the stem; flower stalks inflated.

"Formation of stomata from leaf of Hyacinth, seen from the surface. e, epidermis cells; s', mother-cell of stomatic guard-cells; s, bipartition of mother-cell into two guard-cells." &mdash; Encyclopedia Britanica, 1893

Hyacinth

"Formation of stomata from leaf of Hyacinth, seen from the surface. e, epidermis cells; s', mother-cell…

This is a decoration of the neck of a Greek Hydria.

Greek Hydria

This is a decoration of the neck of a Greek Hydria.

Leaves floating flat on surfacel inflourescences minute and inconspicuos.

Hydrochloa

Leaves floating flat on surfacel inflourescences minute and inconspicuos.

Leaves small, about 8 cm. in diameter or less; toothed or lobed.

Hydrocotyle

Leaves small, about 8 cm. in diameter or less; toothed or lobed.

Leaves round, often peltate; the long petiole attached near center of leaf.

Hydrocotyle

Leaves round, often peltate; the long petiole attached near center of leaf.

Leaves coming off a creeping or horizontal stem.

Hydrocotyle

Leaves coming off a creeping or horizontal stem.

Sepals united at base into a tube enclosing the ovary and later the fruit; leaves with spines in axils.

Hydrolea

Sepals united at base into a tube enclosing the ovary and later the fruit; leaves with spines in axils.

Plants aromatic when crushed; flowers blue.

Hydrotrida

Plants aromatic when crushed; flowers blue.

flowers solitary or a few in hte axils of the leaves.

Hygrophila

flowers solitary or a few in hte axils of the leaves.

Flowers with filaments connected by a funnel-like membrane.

Hymenocallis

Flowers with filaments connected by a funnel-like membrane.

Portion of the united calyx investing the fruit.

Hypanthium

Portion of the united calyx investing the fruit.

Leaf, when examined against light with lens, showing semitransparent dots; flowers yellow or pink.

Hypericum

Leaf, when examined against light with lens, showing semitransparent dots; flowers yellow or pink.

Hypoxis erecta flowers are yellow and star shaped. Each scape has four flowers. The leaves are linear and taper to a point.

Scape and Leaf of Hypoxis Erecta

Hypoxis erecta flowers are yellow and star shaped. Each scape has four flowers. The leaves are linear…

Leaves - simple; alternate; edge with remote, not evergreen; egg-shape or long oval, rather thin with edge finely toothed, Outline - oval. Apex - taper-pointed. Leaf - about two inches long; dark polished green above; below rather yellowish-green; thick and stiff; smooth throughout; ribs very indistinct below. Bark - light gray and smooth. Fruit - a nearly round, bright-red berry, the size of a pea. It ripens in September and continues upon the branches into the winter. Found - in damp woods in the Catskill and Tahonic Mountains, and in Cattaraugus County, New York; through Pennsylvania as far east as Northampton County, and southward along the Alleghanies. General Information - This is usually regarded as a shrub, "but it not seldom attains the size and exhibits the port of a small tree" -(T. C. Porter).

Genus Ilex, L. (Holly)

Leaves - simple; alternate; edge with remote, not evergreen; egg-shape or long oval, rather thin with…

Leaves usually with a few remote teeth above the middle or at least bristle-tipped; fruit a red or black berry.

Ilex

Leaves usually with a few remote teeth above the middle or at least bristle-tipped; fruit a red or black…

Ilex aquifolium ferox is a green leaved variety of holly. The common name is hedgehog holly. The leaves are two inches long with strongly developed marginal spines.

Leaf of Ilex Aquifolium Ferox

Ilex aquifolium ferox is a green leaved variety of holly. The common name is hedgehog holly. The leaves…

Common holly is the common name of ilex aquifolium. The leaves are shiny and spiny toothed.

Ilex Aquifolium

Common holly is the common name of ilex aquifolium. The leaves are shiny and spiny toothed.