An illustration of a sea-lily fossil.

Sea-lily

An illustration of a sea-lily fossil.

An illustration of a male sedge flower.

Male Sedge Flower

An illustration of a male sedge flower.

Sedum is the large stonecrop genus of the Crassulaceae, representing about 400 species of leaf succulents, found throughout the northern hemisphere, varying from annual and creeping herbs to shrubs. The plants have water-storing leaves. The flowers usually have five petals, seldom four or six. There are typically twice as many stamens as petals.

Sedum

Sedum is the large stonecrop genus of the Crassulaceae, representing about 400 species of leaf succulents,…

The cluster of leaves and raceme of the Barberry, (Gray, 1858).

Seed

The cluster of leaves and raceme of the Barberry, (Gray, 1858).

"Seeds cut vertically, showing their Embryos and Albumen."-Whitney, 1902

Seeds

"Seeds cut vertically, showing their Embryos and Albumen."-Whitney, 1902

"Selago distans. 1. a flower; 2. an anther; 3. a perpendicular section of an ovary; 4. section of seed of Microdon ovatum." -Lindley, 1853

Selago

"Selago distans. 1. a flower; 2. an anther; 3. a perpendicular section of an ovary; 4. section of seed…

"Self-heal. (Prunella vulgaris). The upper part of the stem with flowers. a, the calyx; b, the corolla; c, a leaf; d, a bract from the inflorescence." -Whitney, 1911

Self-Heal

"Self-heal. (Prunella vulgaris). The upper part of the stem with flowers. a, the calyx; b, the corolla;…

Pictured is a semi-formal garden space of annual flowers. Annuals are plants that bloom in the open the same year the seeds are sown and that do not live over winter.

Semi-Formal Garden Space

Pictured is a semi-formal garden space of annual flowers. Annuals are plants that bloom in the open…

<em>Senecio vulgaris</em>, a member of the genus senecio.

Senecio

Senecio vulgaris, a member of the genus senecio.

An illustration of a disk-floret of the senecio flower. Senecio is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Though of late the genus has been reviewed and split up, it still contains a vast number of species (about 1,500) of extremely wide form including leaf succulents, stem and tuber succulents, annuals, perennials, aquatic forms, climbers, shrubs and small trees. Some species produce natural pesticides (especially alkaloids) to deter or even kill animals that would eat them.

Disk-floret of the Senecio

An illustration of a disk-floret of the senecio flower. Senecio is a genus of the daisy family (Asteraceae)…

An longitudinal section view of a disk-floret of the senecio flower. Senecio is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Though of late the genus has been reviewed and split up, it still contains a vast number of species (about 1,500) of extremely wide form including leaf succulents, stem and tuber succulents, annuals, perennials, aquatic forms, climbers, shrubs and small trees. Some species produce natural pesticides (especially alkaloids) to deter or even kill animals that would eat them.

Disk-floret of the Senecio (Longitudinal Section)

An longitudinal section view of a disk-floret of the senecio flower. Senecio is a genus of the daisy…

An illustration of a ray-floret of the senecio flower. Senecio is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Though of late the genus has been reviewed and split up, it still contains a vast number of species (about 1,500) of extremely wide form including leaf succulents, stem and tuber succulents, annuals, perennials, aquatic forms, climbers, shrubs and small trees. Some species produce natural pesticides (especially alkaloids) to deter or even kill animals that would eat them.

Female ray-floret of the Senecio

An illustration of a ray-floret of the senecio flower. Senecio is a genus of the daisy family (Asteraceae)…

An illustration of the gynaeceum of the senecio flower. Senecio is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Though of late the genus has been reviewed and split up, it still contains a vast number of species (about 1,500) of extremely wide form including leaf succulents, stem and tuber succulents, annuals, perennials, aquatic forms, climbers, shrubs and small trees. Some species produce natural pesticides (especially alkaloids) to deter or even kill animals that would eat them.

Gynaeceum of the Senecio

An illustration of the gynaeceum of the senecio flower. Senecio is a genus of the daisy family (Asteraceae)…

"Flowering branch of Senna (Cassia obovata). a, a pod." -Whitney, 1911

Senna

"Flowering branch of Senna (Cassia obovata). a, a pod." -Whitney, 1911

A branch of the Canadian Serviceberry (Amelanchier canadensis), a shrub or small tree, showing flowers.

Canadian Serviceberry

A branch of the Canadian Serviceberry (Amelanchier canadensis), a shrub or small tree, showing flowers.

The Sesame (Sesamum orientale, Sesamum indicum) is a flowering plant in the Pedaliaceae family of pedaliums or sesames used for its edible seeds and oil.

Sesame

The Sesame (Sesamum orientale, Sesamum indicum) is a flowering plant in the Pedaliaceae family of pedaliums…

"SET FOIL OR SIX FOIL. Six leaves conjoined in the centre." -Hall, 1862

Set Foil

"SET FOIL OR SIX FOIL. Six leaves conjoined in the centre." -Hall, 1862

Petal of a shepherd's purse.

Petal of Shepherd's Purse

Petal of a shepherd's purse.

The shoot of the Barberry, (Gray, 1858).

Shoot

The shoot of the Barberry, (Gray, 1858).

Unguiculate (clawed) petal of a Silene; with a two parted crown.

Silene

Unguiculate (clawed) petal of a Silene; with a two parted crown.

Longitudinal section of flower of Silene Pennsylvanica, showing stipe between calyx and corolla.

Silene Pennsylvanica

Longitudinal section of flower of Silene Pennsylvanica, showing stipe between calyx and corolla.

The pendula is a plant which belongs to the silene genus.

Pendula Silene

The pendula is a plant which belongs to the silene genus.

The orders of simarubaceae, burseraceae, meliaceae, and malpighiaceae are pictured. The flowers of these orders that are illustrated are (1) ailanthus, (2) bursera, (3) swietenia, (4) cedrela, (5) melia, (6) camera, and (7) malpighia.

Orders of Simarubaceae, Burseraceae, Meliaceae, and Malpighiaceae

The orders of simarubaceae, burseraceae, meliaceae, and malpighiaceae are pictured. The flowers of these…

Model of a simple pistil, with ovary cut across and slightly opened ventrally, to show the ovules and their attachment.

Simple Pistil

Model of a simple pistil, with ovary cut across and slightly opened ventrally, to show the ovules and…

Composite, or compound flower, from one of the largest botanical orders. 4, single fruit.

Single Fruit

Composite, or compound flower, from one of the largest botanical orders. 4, single fruit.

In the single varieties of petunia there is variety in coloring. Some are beautifully veined, striped, or marked in various ways.

Flower of Single Garden Petunia

In the single varieties of petunia there is variety in coloring. Some are beautifully veined, striped,…

Pictured is a single perianth as seen in anemone sylvestris.

Single Perianth

Pictured is a single perianth as seen in anemone sylvestris.

<i>Sium sisarum</i>. "A species of water parsnip, generally said to be of Chinese origin, long cultivated in Europe for its esculent root. It is a plant a foot high with pinnate leaves, a hardy perennial, but grown as an annual. The root is composed of small fleshy tubers, of the size of the little finger, united at the crown." &mdash;Whitney, 1889

Skirret

Sium sisarum. "A species of water parsnip, generally said to be of Chinese origin, long cultivated in…

"A plant of the genus <i>Scutellaria</i>: so called from the helmet-like appendage to the upper lip of the calyx, which closes the mouth of the calyx after the fall of the corolla." &mdash;Whitney, 1889
<p>In the illustration, <i>a</i> represents the calyx. This illustration is of <i>Scutellaria serrata</i>, an herbaceous perennial mint.

Skullcap - Upper Part of the Flowering Stem

"A plant of the genus Scutellaria: so called from the helmet-like appendage to the upper lip of the…

Small flax lily is the common name of phormium cookianum. The flowers are yellow with greenish outer segments. The flowers are about one inch long. The flowers bloom in summer.

Small Flax Lily

Small flax lily is the common name of phormium cookianum. The flowers are yellow with greenish outer…

Smilax is a genus of about 300-350 species, found in the tropics and subtropics worldwide. In China for example about 80 are found (39 of which are endemic), while there are 20 in North America north of Mexico[1]. They are climbing flowering plants, many of which are woody and/or thorny, in the monocotyledon family Smilacaceae, native throughout the tropical and warm temperate regions of the world. Common names include catbriers, greenbriers, prickly-ivys and smilaxes. "Sarsaparilla" (also zarzaparrilla, sarsparilla) is a name used specifically for the Jamaican S. regelii as well as a catch-all term in particular for American species. Occasionally, the non-woody species such as the Smooth Herbaceous Greenbrier (S. herbacea) are separated as genus Nemexia; they are commonly known by the rather ambiguous name "carrion flowers"

Smilax

Smilax is a genus of about 300-350 species, found in the tropics and subtropics worldwide. In China…

<i>Sansevieria Zeylanica</i> is the Latin name, but this plant is also called a Mother-in-law's Tongue. "A genus of monocotyledonous plants of the order of <i>Haemodoraceae</i> and tribe <i>Ophiopogoneae</i>. It is characterized by a long and slender perianth-tube, six filiform filaments, and a free ovary, fixed by a broad base, containing three cells and three erect ovules." &mdash;Whitney, 1889

Snake Plant

Sansevieria Zeylanica is the Latin name, but this plant is also called a Mother-in-law's Tongue. "A…

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).

"<i>Polygala senega</i> of eastern North America. It sends up several stems from hard knotty root-stocks, bearing single close racemes of white flowers. It is the source of the officinal senegaroot, and from being much gathered is said to have become scarce in the east." &mdash;Whitney, 1889
<p>This illustration shows the knotty roots and the lower portion of the stem.

Seneca Snakeroot - Roots and Base of the Stem

"Polygala senega of eastern North America. It sends up several stems from hard knotty root-stocks, bearing…

"<i>Polygala senega</i> of eastern North America. It sends up several stems from hard knotty root-stocks, bearing single close racemes of white flowers." &mdash;Whitney, 1889
<p>This illustration includes the upper portion of the stem and the flowers.

Seneca Snakeroot - Stem and Flowers

"Polygala senega of eastern North America. It sends up several stems from hard knotty root-stocks, bearing…

"<i>Polygala senega</i> of eastern North America. It sends up several stems from hard knotty root-stocks, bearing single close racemes of white flowers. It is the source of the officinal senegaroot, and from being much gathered is said to have become scarce in the east." &mdash;Whitney, 1889
<p>This illustration is of the fruit of the plant.

Seneca Snakeroot - the Fruit

"Polygala senega of eastern North America. It sends up several stems from hard knotty root-stocks, bearing…

Corolla of Snapdragon, with labiate <em>personate</em> corolla.

Snapdragon

Corolla of Snapdragon, with labiate personate corolla.

"2. corolla of Antirrhinum majus cut open; 3. its pistil; 4. its ripe fruit; 5. cross section of its ovary; 6. section of its seed." -Lindley, 1853

Snapdragon

"2. corolla of Antirrhinum majus cut open; 3. its pistil; 4. its ripe fruit; 5. cross section of its…

Snowdrop is the common name for members of the genus Galanthus, a small genus of about 20 species in the family Amaryllidaceae; snowdrops are among the first bulbs to bloom in spring, although certain species flower in late autumn and winter.

Snowdrop

Snowdrop is the common name for members of the genus Galanthus, a small genus of about 20 species in…

"Sapindus senegalensis. 1. an expanded flower; 2. a petal; 3. the ovaries before fertilisation; 4. a vertical section of a ripe drupe, showing the embryo." -Lindley, 1853

Soapberry

"Sapindus senegalensis. 1. an expanded flower; 2. a petal; 3. the ovaries before fertilisation; 4. a…

"Branch with fruits of Sapindus drummondi. a, a flower." -Whitney, 1911

Western Soapberry

"Branch with fruits of Sapindus drummondi. a, a flower." -Whitney, 1911

Polypetalous corolla of Soapwort, of five petals with long claws or stalk-like bases.

Soapwort

Polypetalous corolla of Soapwort, of five petals with long claws or stalk-like bases.

Pictured are flowers of the orders solanaceae, scrophulariaceae, bignoiaceae, and pedaliaceae. The flowers illustrated are (1) solanum, (2) nicotiana, (3) verbascum, (4) antirrhinum, (5) scrophularia, (6) campsis, and (7) sesamum.

Orders of Solanaceae, Scrophylariaceae, Bignoniaceae, and Pedaliaceae.

Pictured are flowers of the orders solanaceae, scrophulariaceae, bignoiaceae, and pedaliaceae. The flowers…

Also known as Polygonatum multiflorum. Consists of several peduncles and white flowers. They are commonly found in the Northern hemisphere.

Solomon's Seal

Also known as Polygonatum multiflorum. Consists of several peduncles and white flowers. They are commonly…

"The common sorrel is a meadow plant, slender in habit, with halberd-shaped, juicy, acid flavored leaves, and bearing whorled spikes of greenish-red flowers in summer."&mdash;Finley, 1917

Sorrel

"The common sorrel is a meadow plant, slender in habit, with halberd-shaped, juicy, acid flavored leaves,…

A female sorrel flower.

Female sorrel flower

A female sorrel flower.

A male sorrel flower.

Male sorrel flower

A male sorrel flower.

Also known as Yucca schidigera. A flowering plant that is native to the Mojave Desert in the Western United States.

Branch of Spanish Bayonet

Also known as Yucca schidigera. A flowering plant that is native to the Mojave Desert in the Western…

Also known as Yucca gloriosa. The branch of a Spanish Dagger plant, part of the agave family.

Branch of Spanish Dagger

Also known as Yucca gloriosa. The branch of a Spanish Dagger plant, part of the agave family.

"An aromatic plant, <i>Mentha viridis</i>, the common garden-mint, or mint proper. It is known chiefly in gardens, or as an escape from them, in both hemispheres, and is suspected to be a garden or accidental variety of <i>M. sylvestris</i>. Its properties are those of peppermint, and it yields an oil like that of the latter, but with a more pleasant flavor." &mdash;Whitney, 1889
<p>This illustration shows the flower of the plant.

Spearmint Flower

"An aromatic plant, Mentha viridis, the common garden-mint, or mint proper. It is known chiefly in gardens,…

Of the Figwort family (Scrophulariaceae), the Alpine speedwell (Veronica alpina).

Alpine Speedwell

Of the Figwort family (Scrophulariaceae), the Alpine speedwell (Veronica alpina).

Roman goddess of hope

Spes

Roman goddess of hope

"Aneilema crispatum; 1. a flower; 2. the calyx and pistil; 3. the capsule; 4, 5, seeds; 6. a section of ditto showing the embryo; 7. the papilla; 8. the embryo." -Lindley, 1853

Spiderwort

"Aneilema crispatum; 1. a flower; 2. the calyx and pistil; 3. the capsule; 4, 5, seeds; 6. a section…

"The common spindle tree (<em>Euonymus europaeus</em>) is a European shrub, which bears glossy lanceolate leaves, and in late spring clusters of small greenish flowers, followed by fruits which become beautifully rose colored."—Finley, 1917

Spindle Tree

"The common spindle tree (Euonymus europaeus) is a European shrub, which bears glossy lanceolate…

Flower of the spindle tree.

Spindle Tree Flower

Flower of the spindle tree.

This caddy spoon in the shape of a flower, is made with gilt (thin layer of gold).

Caddy Spoon

This caddy spoon in the shape of a flower, is made with gilt (thin layer of gold).

"Canadian St.-John's-wort (Hypericum Canadense). a, leaf; b, seed-capsule." -Whitney, 1911

Canadian St. John's Wort

"Canadian St.-John's-wort (Hypericum Canadense). a, leaf; b, seed-capsule." -Whitney, 1911

"Marsh St.-John's-wort (Triadenum Virginicum). a, flower; b, seed-capsule." -Whitney, 1911

Marsh St. John's Wort

"Marsh St.-John's-wort (Triadenum Virginicum). a, flower; b, seed-capsule." -Whitney, 1911

St. Joseph's Lilies are pure pearl white. The flowers are two to three inches long. The flowers bloom in June.

Flower Stem of St. Joseph's Lily

St. Joseph's Lilies are pure pearl white. The flowers are two to three inches long. The flowers bloom…

A single flower of stachys sylvatica.

Flower of stachys sylvatica

A single flower of stachys sylvatica.