A kidney-shaped leaf.

Kidney-Shaped Leaf

A kidney-shaped leaf.

A trowel-shaped leaf.

Trowel-Shaped Leaf

A trowel-shaped leaf.

Maple seeds.

Maple Seed

Maple seeds.

Opposite of ovate, egg-shaped and narrow at the base.

Obovate Leaf

Opposite of ovate, egg-shaped and narrow at the base.

An egg-shaped leaf, wide at the base.

Ovate Leaf

An egg-shaped leaf, wide at the base.

"Pectinate.--Like the teeth of a comb." -Newman, 1850

Pectinate Leaf

"Pectinate.--Like the teeth of a comb." -Newman, 1850

A lion toothed leaf.

Lion Toothed Leaf

A lion toothed leaf.

"Bipinnate.--Double rows of leaflets." -Newman, 1850

Bipinnate

"Bipinnate.--Double rows of leaflets." -Newman, 1850

Opposite leaves, in adjacent pairs.

Opposite Leaves

Opposite leaves, in adjacent pairs.

Upright leaves.

Upright Leaves

Upright leaves.

"Digitate.--Having the form of an open hand." -Newman, 1850

Digitate Leaf

"Digitate.--Having the form of an open hand." -Newman, 1850

"Linear.--Narrow, with parallel sides, as in most grasses." -Newman, 1850

Linear Leaf

"Linear.--Narrow, with parallel sides, as in most grasses." -Newman, 1850

A wedge-shaped leaf.

Wedge-Shaped Leaf

A wedge-shaped leaf.

"Peltate.--Stalk fastened in the middle." -Newman, 1850

Peltate Leaf

"Peltate.--Stalk fastened in the middle." -Newman, 1850

"Hastate.--Formed like the head of an ancient halbert." -Newman, 1850

Hastate

"Hastate.--Formed like the head of an ancient halbert." -Newman, 1850

"Spatulate.--Having the form of a spatula; a kind of knife, almost spoon-shaped, but flat." -Newman, 1850

Spatulate Leaf

"Spatulate.--Having the form of a spatula; a kind of knife, almost spoon-shaped, but flat." -Newman,…

"Tripinnate.--Triple rows of leaflets." -Newman, 1850

Tripinnate

"Tripinnate.--Triple rows of leaflets." -Newman, 1850

An acerose, or needle-shaped leaf.

Acerose Leaf

An acerose, or needle-shaped leaf.

A hastate leaf that is triangular in shape with basal lobes.

Hastate Leaf

A hastate leaf that is triangular in shape with basal lobes.

"Fascicles.--When leaves or flowers grow more than two together they are said to be fasciculated, or in fascicles." -Newman, 1850

Fascicles

"Fascicles.--When leaves or flowers grow more than two together they are said to be fasciculated, or…

A decorative divider with leaves and birds.

Leaf Divider

A decorative divider with leaves and birds.

A decorative divider with leaves and birds.

Bird Divider

A decorative divider with leaves and birds.

Of the Parsley family (Umbelliferae), the Maryland black snakeroot (Sanicula marilandica).

Maryland Black Snakeroot

Of the Parsley family (Umbelliferae), the Maryland black snakeroot (Sanicula marilandica).

Of the Pyrola family (Pyrolaceae), the leaf of Pyrola chlorantha.

Pyrola Chlorantha Leaf

Of the Pyrola family (Pyrolaceae), the leaf of Pyrola chlorantha.

Of the Pyrola family (Pyrolaceae), the leaf of the small pyrola (Pyrola secunda).

Small Pyrola Leaf

Of the Pyrola family (Pyrolaceae), the leaf of the small pyrola (Pyrola secunda).

Of the Plumbago or Leadwort family (Plumbaginaceae), the marsh rosemary (Limonium carolinianum).

Marsh Rosemary

Of the Plumbago or Leadwort family (Plumbaginaceae), the marsh rosemary (Limonium carolinianum).

Of the Convolvulus family (Convolvulaceae): top, hedge bindweed (Convolvulus sepium); bottom, common dodder (Cuscuta Gronovii).

Bindweed and Dodder

Of the Convolvulus family (Convolvulaceae): top, hedge bindweed (Convolvulus sepium); bottom, common…

Of the Borage family (Boraginaceae), the Virginia stickseed (Lappula virginiana).

Virginia Stickseed

Of the Borage family (Boraginaceae), the Virginia stickseed (Lappula virginiana).

Of the Borage family (Boraginaceae), the hound's tongue (Cynoglossum officinale).

Hound's Tongue

Of the Borage family (Boraginaceae), the hound's tongue (Cynoglossum officinale).

Of the Mint family (Labiatae), the rich weed (Collinsonia Canadensis).

Rich Weed

Of the Mint family (Labiatae), the rich weed (Collinsonia Canadensis).

Of the Mint family (Labiatae), the horse mint (Mentha longifolia).

Horse Mint

Of the Mint family (Labiatae), the horse mint (Mentha longifolia).

Of the Mint family (Labiatae), the peppermint (Mentha piperita).

Peppermint

Of the Mint family (Labiatae), the peppermint (Mentha piperita).

Of the Mint family (Labiatae), the spearmint (Mentha spicata).

Spearmint

Of the Mint family (Labiatae), the spearmint (Mentha spicata).

Of the Mint family (Labiatae), the leaf of the water mint (Mentha aquatica.

Water Mint Leaf

Of the Mint family (Labiatae), the leaf of the water mint (Mentha aquatica.

Of the Mint family (Labiatae), the lower leaf of the cut-leaved water horehound (Lycopus americanus).

Cut-Leaved Water Horehound Leaf

Of the Mint family (Labiatae), the lower leaf of the cut-leaved water horehound (Lycopus americanus).

Of the Mint family (Labiatae), the leaf of the corn mint (Mentha arvensis).

Corn Mint Leaf

Of the Mint family (Labiatae), the leaf of the corn mint (Mentha arvensis).

Of the Mint family (Labiatae), the wild mint (Mentha arvensis var. Canadensis).

Wild Mint

Of the Mint family (Labiatae), the wild mint (Mentha arvensis var. Canadensis).

Of the Mint family (Labiatae), the wild bergamot (Monarda fistulosa var. rubra).

Wild Bergamot

Of the Mint family (Labiatae), the wild bergamot (Monarda fistulosa var. rubra).

Of the Mint family (Labiatae), the sage (Salvia lyrata).

Sage

Of the Mint family (Labiatae), the sage (Salvia lyrata).

Of the Mint family (Labiatae), the downy blephilia (Blephilia ciliata).

Downy Blephilia

Of the Mint family (Labiatae), the downy blephilia (Blephilia ciliata).

Of the Mint family (Labiatae), the leaf of Scutellaria nervosa.

S. nervosa Skullcap

Of the Mint family (Labiatae), the leaf of Scutellaria nervosa.

Of the Mint family (Labiatae), the leaf of the common skullcap (Scutellaria galericulata).

Common Skullcap

Of the Mint family (Labiatae), the leaf of the common skullcap (Scutellaria galericulata).

Of the Mint family (Labiatae), the leaf of Scutellaria versicolor.

S. versicolor Skullcap

Of the Mint family (Labiatae), the leaf of Scutellaria versicolor.

Of the Mint family (Labiatae), the leaf of Scutellaria parvula.

S. parvula Skullcap

Of the Mint family (Labiatae), the leaf of Scutellaria parvula.

Of the Mint family (Labiatae), the leaf of Scutellaria canescens.

S. canescens Skullcap

Of the Mint family (Labiatae), the leaf of Scutellaria canescens.

Of the Mint family (Labiatae), the leaf of Scutellaria serrata.

S. serrata Skullcap

Of the Mint family (Labiatae), the leaf of Scutellaria serrata.

Of the Mint family (Labiatae), the leaf of Scutellaria pilosa.

S. pilosa Skullcap

Of the Mint family (Labiatae), the leaf of Scutellaria pilosa.

Of the Mint family (Labiatae), the self-heal (Prunella vulgaris).

Self-Heal

Of the Mint family (Labiatae), the self-heal (Prunella vulgaris).

Of the Nightshade family (Solanaceae), the leaf and flower of the bittersweet nightshade (Solanum Dulcamara).

Bittersweet Nightshade

Of the Nightshade family (Solanaceae), the leaf and flower of the bittersweet nightshade (Solanum Dulcamara).

Of the Nightshade family (Solanaceae), the leaf and flower of the Virginia ground cherry (Physalis virginiana).

Virginia Ground Cherry

Of the Nightshade family (Solanaceae), the leaf and flower of the Virginia ground cherry (Physalis virginiana).

Of the plantain family (Plantaginaceae), the blackseed plantain (Plantago Rugelii).

Blackseed Plantain

Of the plantain family (Plantaginaceae), the blackseed plantain (Plantago Rugelii).

Of the Honeysuckle family (Caprifoliaceae), the feverwort (Triosteum perfoliatum).

Feverwort

Of the Honeysuckle family (Caprifoliaceae), the feverwort (Triosteum perfoliatum).

Of the Honeysuckle family (Caprifoliaceae), the hobble-bush (Viburnum alnifolium).

Hobble-Bush

Of the Honeysuckle family (Caprifoliaceae), the hobble-bush (Viburnum alnifolium).

Of the Valerian family (Valerianaceae), the corn salad (Valerianella Woodsiana).

Valerianella Woodsiana

Of the Valerian family (Valerianaceae), the corn salad (Valerianella Woodsiana).

Of the Gourd family (Cucurbitaceae), the leaf of the one-seeded bur-cucumber (Sicyos angulatus).

One-Seeded Bur-Cucumber

Of the Gourd family (Cucurbitaceae), the leaf of the one-seeded bur-cucumber (Sicyos angulatus).

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

Joe-Pye-Weed

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

Of the Composite family (Compositae), the leaf of the rough-stemmed golden-rod (Solidago rugosa).

Rough-Stemmed Golden-Rod

Of the Composite family (Compositae), the leaf of the rough-stemmed golden-rod (Solidago rugosa).

Of the Composite family (Compositae), the leaf of the late golden-rod (Solidago serotina).

Late Golden-Rod

Of the Composite family (Compositae), the leaf of the late golden-rod (Solidago serotina).

Of the arrowhead family (Sagittaria), the bulltongue arrowhead (Sagittaria lancifolia).

Bulltongue Arrowhead

Of the arrowhead family (Sagittaria), the bulltongue arrowhead (Sagittaria lancifolia).

Of the arrowhead family (Sagittaria), the narrow-leaved arrowhead (Sagittaria subulata).

Narrow-Leaved Arrowhead

Of the arrowhead family (Sagittaria), the narrow-leaved arrowhead (Sagittaria subulata).