Also known as Populus heterophylla. The branch from a Swamp Cottonwood tree, native to warm regions of North America.

Branch of Swamp Cottonwood

Also known as Populus heterophylla. The branch from a Swamp Cottonwood tree, native to warm regions…

Also known as Hicoria minima. The branch of a Swamp Hickory tree, which produces pear-shaped nuts.

Branch of Swamp Hickory

Also known as Hicoria minima. The branch of a Swamp Hickory tree, which produces pear-shaped nuts.

Also known as Quercus laurifolia. The branch of a Swamp Laurel Oak, native to the southeast United States.

Branch of Swamp Laurel Oak

Also known as Quercus laurifolia. The branch of a Swamp Laurel Oak, native to the southeast United States.

Also known as Betula lenta. A species of birch native to eastern North America.

Branch of Sweet Birch

Also known as Betula lenta. A species of birch native to eastern North America.

A type of flower.

Sweet Pea

A type of flower.

Sweet pea tendrils.

Sweet Pea

Sweet pea tendrils.

Also known as Magnolia virginiana. The branch of a Sweetbay Magnolia plant, native to the southeastern coast of the United States.

Branch of Sweetbay Magnolia

Also known as Magnolia virginiana. The branch of a Sweetbay Magnolia plant, native to the southeastern…

A leafy vegetable grown primarily for its edible roots.

Swiss Chard

A leafy vegetable grown primarily for its edible roots.

"Symplocos laxiflora. 1. expanded flower; 2. corolla cut open; 3. a stamen; 4. longitudinal section of ovary; 5. transverse ditto; 6. ripe fruit; 7. longitudinal section of ditto." -Lindley, 1853

Symplocos

"Symplocos laxiflora. 1. expanded flower; 2. corolla cut open; 3. a stamen; 4. longitudinal section…

"Synaphea dilatata. 1. a flower; 2. one of its lobes; 3. the ovary and style and stigma." -Lindley, 1853

Synaphea

"Synaphea dilatata. 1. a flower; 2. one of its lobes; 3. the ovary and style and stigma." -Lindley,…

Also known as Pinus contorta, var. murrayana. The pine cone of a Tamarack Pine tree, native to the Cascade Range, Sierra Nevada, and surrounding mountain ranges.

Pine Cone of Tamarack Pine

Also known as Pinus contorta, var. murrayana. The pine cone of a Tamarack Pine tree, native to the Cascade…

"Tansy is a genus of Compositæ, numbering about 50 species of strong-scented herbs, often shrubby below, with alternate usually much-divided leaves, and solitary or corymbose heads of rayless yellow flowers. The genus is represented in North America, Europe, North and South Africa, temperate and cold Asia. Common tansy has long had a reputation as a medicinal herb, causing it to be much grown in gardens in the past."—(Charles Leonard-Stuart, 1911)

Tansy

"Tansy is a genus of Compositæ, numbering about 50 species of strong-scented herbs, often shrubby…

A pink flower with corolla white tubes. It is a hybrid greenhouse Rhododendron.

Rhododendron Taylori

A pink flower with corolla white tubes. It is a hybrid greenhouse Rhododendron.

Tea consists of the dried leaves of a number of evergreen shrubs, natives of China or thereabouts. Tea is cultivated in China and India, as far north as latitude 45. It appears to thrive between 25 and 33 N. Latitude. It is extensively cultivated in Malacca, Java, and various portions of the English possessions in India. Tea was introduced into Europe by the Dutch in 1610.

Tea Plant

Tea consists of the dried leaves of a number of evergreen shrubs, natives of China or thereabouts. Tea…

"Paronychia capitata. 1. a section of a flower; 2. of the ovary; 3. ripe seed; 4. a section of it." -Lindley, 1853

Algerian Tea

"Paronychia capitata. 1. a section of a flower; 2. of the ovary; 3. ripe seed; 4. a section of it."…

This perennial plant belongs to the sempervivum; commonly used as an ornamental plant.

Sempervivum Tectorum

This perennial plant belongs to the sempervivum; commonly used as an ornamental plant.

A slender-fronded fern with pinnae that are narrower than those of a regular Pteris serrulata, and has saw-edged leaves. They are commonly found in China.

Pteris Serrulata Tenuifolia

A slender-fronded fern with pinnae that are narrower than those of a regular Pteris serrulata, and has…

Grafting is a horticultural operation which consists in placing together the two cut surfaces of different plants in such a way that they shall unite and become an organic unity. The rooted plant which is to receive the graft is called the 'stock'; the cutting which is to be applied to the stock, and to obtain its nourishment from it, is called the 'scion'. This illustration shows Terminal Herbaceous grafting.

Terminal Herbaceous Grafting

Grafting is a horticultural operation which consists in placing together the two cut surfaces of different…

"Tetratheca hirsuta. 1. the stamens; 2. the pistil, with one of the cells laid open." -Lindley, 1853

Tetratheca

"Tetratheca hirsuta. 1. the stamens; 2. the pistil, with one of the cells laid open." -Lindley, 1853

Also known as Yucca treculeana. The branch of a Texas Bayonette, a species of perennial shrubs in the agave family.

Branch of Texas Bayonette

Also known as Yucca treculeana. The branch of a Texas Bayonette, a species of perennial shrubs in the…

Also known as Ulmus crassifolia. The branch of a Texas Cedar Elm, native to to south central North America.

Branch of Texas Cedar Elm

Also known as Ulmus crassifolia. The branch of a Texas Cedar Elm, native to to south central North America.

Plants white-powdery above; plants extremely large, usually over 1 m.

Thalia

Plants white-powdery above; plants extremely large, usually over 1 m.

"Thesium pratense. 1. a flower; 2. the same laid open; 3. half an unripe fruit; 4. placenta and pair of ovules; 5. half the ripe fruit and seed." -Lindley, 1853

Thesium

"Thesium pratense. 1. a flower; 2. the same laid open; 3. half an unripe fruit; 4. placenta and pair…

The Southern Globe Thistle (Echinops ruthenicus) is a species of thistles in the Asteraceae or daisy family.

Southern Globe Thistle

The Southern Globe Thistle (Echinops ruthenicus) is a species of thistles in the Asteraceae or daisy…

"Armeria vulgaris. 1. calyx and stamens; 2. section of corolla; 3. pistil; 4. ovule; 5. embryo." -Lindley, 1853

Sea Thrift

"Armeria vulgaris. 1. calyx and stamens; 2. section of corolla; 3. pistil; 4. ovule; 5. embryo." -Lindley,…

A species of palm native to southern Florida and Cuba.

Branch of Thrinax Keyensis

A species of palm native to southern Florida and Cuba.

An evergreen coniferous tree found throughout North America and Europe.

Branch of Thuja Occidentalis

An evergreen coniferous tree found throughout North America and Europe.

"A composite (Coreopsis sp.). A, B, E, views of the inflorescence or head; C, a ray-flower; D, section through the head; F, a disc-flower in bud; G, disc-flower just opened; H, older disc-flower, the stigmas reflexed; I, disc-flower with corolla removed." -Gager, 1916

Tickseed

"A composite (Coreopsis sp.). A, B, E, views of the inflorescence or head; C, a ray-flower; D, section…

A timothy plant grown from a single seed - a bunch grass.

Timothy

A timothy plant grown from a single seed - a bunch grass.

Variation in timothy heads. No two are alike.

Timothy heads

Variation in timothy heads. No two are alike.

A type of flower.

Toad Flax

A type of flower.

Corolla of Toad-Flax, with similar corolla spurred at the base.

Toad-Flax

Corolla of Toad-Flax, with similar corolla spurred at the base.

"Toddalia floribunda. 1. a flower; 2. a pair of carpels, one of which shows its ovule; 3. fruits; 4. a perpendicular section of one of them." -Lindley, 1853

Toddalia

"Toddalia floribunda. 1. a flower; 2. a pair of carpels, one of which shows its ovule; 3. fruits; 4.…

A vine of tomatoes grown using a hoop training method.

Hoop Trained Tomato

A vine of tomatoes grown using a hoop training method.

A variety of tomato.

Lorillard Tomato

A variety of tomato.

"Rawson's Puritan has been grown by us for several years as a leading early variety, and has proved not only to be one of the earliest but one of the most profitable in culture as a market variety."—Rawson, 1892

Rawson's Puritan Tomato

"Rawson's Puritan has been grown by us for several years as a leading early variety, and has proved…

"Tonina fluviatilis. 1. male flower; 2. centre of do.; 3. female and male flowers; 4. section of ripe fruit; 5. seed; 6. section of do." -Lindley, 1853

Tonina fluviatilis

"Tonina fluviatilis. 1. male flower; 2. centre of do.; 3. female and male flowers; 4. section of ripe…

Dipteryx odorata or the tonka bean is the seed from a legume tree of the Fabaceae family.

Tonka Bean

Dipteryx odorata or the tonka bean is the seed from a legume tree of the Fabaceae family.

"Salvadora persica. 1. flower; 2. a section of its fruit." -Lindley, 1853

Toothbrush Tree

"Salvadora persica. 1. flower; 2. a section of its fruit." -Lindley, 1853

"Branch with flowers of Salvadora persica. (a), a female flower; (b), the fruit." -Whitney, 1911

Toothbrush Tree

"Branch with flowers of Salvadora persica. (a), a female flower; (b), the fruit." -Whitney, 1911

Also known as Pinus torreyana. The Torrey Pine is the rarest pine species in the United States, and is generally found on the West Coast.

Torrey Pine Cone

Also known as Pinus torreyana. The Torrey Pine is the rarest pine species in the United States, and…

Also known as Quercus toumeyi. The branch of a Toumey Oak tree, native to Mexico and the United States.

Branch of Toumey Oak

Also known as Quercus toumeyi. The branch of a Toumey Oak tree, native to Mexico and the United States.

Also known as Heteromeles arbutifolia. The branch of a Toyon tree, native to California.

Branch of Toyon

Also known as Heteromeles arbutifolia. The branch of a Toyon tree, native to California.

Gymnogramme hispida is a species of tree ferns in the Cyatheaceae family.

Tree Fern

Gymnogramme hispida is a species of tree ferns in the Cyatheaceae family.

An illustration of a simple tree with roots.

Tree with Roots

An illustration of a simple tree with roots.

"The Buffalo Tree-Hopper and its work: a, Adult; b, Fresh egg slits; c, Eggs in slits, natural size; d, Eggs enlarged; e, Scars produced by egg slits."—The Federal Digest, 1921

Buffalo Tree-Hopper

"The Buffalo Tree-Hopper and its work: a, Adult; b, Fresh egg slits; c, Eggs in slits, natural size;…

"This can be opened more or less, thus making it broader, or closed, making it more upright and narrow. It is much handsomer and more desirable than the ordinary stationary ones."—Heinrich, 1887

Adjustable Pot Trellis

"This can be opened more or less, thus making it broader, or closed, making it more upright and narrow.…

"An expanding ivy trellis, which can be used as an upright trellis or in the form of an arch over a door or window."—Heinrich, 1887

Expanding Ivy Trellis

"An expanding ivy trellis, which can be used as an upright trellis or in the form of an arch over a…

A window with an ivy trellis, or a structure to support plants.

Window with Ivy Trellis

A window with an ivy trellis, or a structure to support plants.

A trembling fern with fronds ranging between 2 feet and 4 feet in length, and 6 inches and 2 feet in width. They are commonly found in greenhouses in New Zealand and Australia.

Pteris Tremula

A trembling fern with fronds ranging between 2 feet and 4 feet in length, and 6 inches and 2 feet in…

"Stylidium calcaratum. 1. anthers and stigma, forming the point of the column; 2. capsule split open; 3. seed." -Lindley, 1853

Book Triggerplant

"Stylidium calcaratum. 1. anthers and stigma, forming the point of the column; 2. capsule split open;…

Inflourescences not expanded; the lower pistillate portion breaking up into bony, bead-like joints.

Tripsacum

Inflourescences not expanded; the lower pistillate portion breaking up into bony, bead-like joints.

"Collomia gracilis. 1. calyx and corolla; 2. pistil; 3. cross section of a ripe seed-vessel." -Lindley, 1853

Trumpet

"Collomia gracilis. 1. calyx and corolla; 2. pistil; 3. cross section of a ripe seed-vessel." -Lindley,…

Ending abruptly as if cut off.

Truncate

Ending abruptly as if cut off.

An enlarged, persistent style base often found on the summit of the fruits of sedges.

Tubercle

An enlarged, persistent style base often found on the summit of the fruits of sedges.

A bulbous plant with showy flowers and lanceolate leaves.

Tulip

A bulbous plant with showy flowers and lanceolate leaves.

The female reproductive organ, pistil, of a Tulip.

Tulip Pistil

The female reproductive organ, pistil, of a Tulip.

A type of tulip, which is by far the finest in color.

Parrot Tulip

A type of tulip, which is by far the finest in color.

Of Tulip-tree, with adnate (and extrorse) anther.

Tulip-tree

Of Tulip-tree, with adnate (and extrorse) anther.

Top shaped or conical with the broad end uppermost.

Turbinate

Top shaped or conical with the broad end uppermost.