<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…

Also known as Ulmus fulva. The branch of a Slippery Elm tree, native to eastern North America.

Branch of Slippery Elm

Also known as Ulmus fulva. The branch of a Slippery Elm tree, native to eastern North America.

"Careya arborea. 1. one of the bundles of stamens; 2. a perpendicular section of the ovary; 3. section of the seed." -Lindley, 1853

Slow Match Tree

"Careya arborea. 1. one of the bundles of stamens; 2. a perpendicular section of the ovary; 3. section…

Leaves with several veins running from base to apex; stems often thorny.

Smilax

Leaves with several veins running from base to apex; stems often thorny.

"Stem of "Smilax" (Myrsiphyllum). l, scale-like leaves; cl, cladophyll, or leaf-like branch, growing in the axil of the leaf; ped, flower-stalk, growing in the axil of a leaf." -Bergen, 1896

Smilax

"Stem of "Smilax" (Myrsiphyllum). l, scale-like leaves; cl, cladophyll, or leaf-like branch, growing…

<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…

"Germinating seed of Ophiocaryon paradoxum. a. radicle; b. cauliculus; cc. cotyledons." -Lindley, 1853

Snakenut

"Germinating seed of Ophiocaryon paradoxum. a. radicle; b. cauliculus; cc. cotyledons." -Lindley, 1853

"Flowering plant of sanicle (Sanicula marilandica). (a), a male flower; (b), the fruit." -Whitney, 1911

Maryland Black Snakeroot

"Flowering plant of sanicle (Sanicula marilandica). (a), a male flower; (b), the fruit." -Whitney, 1911

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…

A type of flower.

Snapdragon

A type of flower.

The ringent corolla of the snapdragon or Antirrhinum.

Snapdragon Corolla

The ringent corolla of the snapdragon or Antirrhinum.

"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

"Soapwort (Saponaria), a genus of plants of the natural order Caryophyllace&aelig;; so called because the bruised leaves produce a lather like soap when agitated in the water. Common soapwort grows by the roadside in the United States from New England to Georgia. It is a native of many parts of Europe, and is found on way sides, river banks, and thickets; in Great Britain it is found in alluvial meadows and under hedges. It has handsome pink-like flowers."&mdash;(Charles Leonard-Stuart, 1911)

Soapwort

"Soapwort (Saponaria), a genus of plants of the natural order Caryophyllaceæ; so called because…

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.

The botanical name for plants that belong to the pittosporaceae.

Heterophylla Sollya

The botanical name for plants that belong to the pittosporaceae.

A plant of the rosaceae family.

Sorbaria Sorbifolia

A plant of the rosaceae family.

"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,…

"Oxalis confertissima. 1. calyx; 2. stamens; 3. pistil; 4. seed and its section of O. acetosella" (common wood sorrel). -Lindley, 1853

Sorrel

"Oxalis confertissima. 1. calyx; 2. stamens; 3. pistil; 4. seed and its section of O. acetosella" (common…

Also known as Quercus virginiana. The branch of a Southern Live Oak tree, native to the southeastern United States.

Branch of Southern Live Oak

Also known as Quercus virginiana. The branch of a Southern Live Oak tree, native to the southeastern…

Also known as Magnolia grandiflora. The branch and flower of a Southern Magnolia plant, native to the southern United States.

Flower of Southern Magnolia

Also known as Magnolia grandiflora. The branch and flower of a Southern Magnolia plant, native to the…

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.

Also known as Quercus falcata. The branch of a Spanish Oak tree, naive to the eastern coast of the United States.

Branch of Spanish Oak

Also known as Quercus falcata. The branch of a Spanish Oak tree, naive to the eastern coast of the United…

Sheaths narrowed to blade; leaves with keels.

Sparganium

Sheaths narrowed to blade; leaves with keels.

Spikelets 6mm long or more; grass growing in large clumps.

Spartina

Spikelets 6mm long or more; grass growing in large clumps.

Leaf-like structure more or less enclosing a fleshy inflorescence, particularly in the Araceae.

Spathe

Leaf-like structure more or less enclosing a fleshy inflorescence, particularly in the Araceae.

Pertains to shape.

Spatulate

Pertains to shape.

An ornamental plant, of the campanulaceae.

Specularia Speculum

An ornamental plant, of the campanulaceae.

"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…

A flower cluster with flowers sessile along a common more or less elongated axis.

Spike

A flower cluster with flowers sessile along a common more or less elongated axis.

"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…

"Euonymus europaeus. 1. a section of a fruit; 2. a seed enveloped in its aril; 3. a perpendicular section of a seed." -Lindley, 1853

European Spindle

"Euonymus europaeus. 1. a section of a fruit; 2. a seed enveloped in its aril; 3. a perpendicular section…

Plant body conspicuously nerved, roolets two to several per disk.

Spirodela

Plant body conspicuously nerved, roolets two to several per disk.

A vegetable resembling a miniature cabbage.

Brussels Sprouts

A vegetable resembling a miniature cabbage.

Also known as Pinus glabra. The pine cone of a Spruce Pine tree.

Pine Cone of Spruce Pine

Also known as Pinus glabra. The pine cone of a Spruce Pine tree.

A hollow sac-like or tubular extension of some part of a flower.

Spur

A hollow sac-like or tubular extension of some part of a flower.

Euphorbia caputmedusae or the Medusa's Head is a spurge from the diverse genus, Euphorbia.

Medusa's Head Spurge

Euphorbia caputmedusae or the Medusa's Head is a spurge from the diverse genus, Euphorbia.

A small summer squash notable for its resemblance to a small toy top.

Pattypan Squash

A small summer squash notable for its resemblance to a small toy top.

"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

"The European hedge woundwort, a tall hairy plant, with heart-shaped leaves, and numerous whorls of full purple flowers, usually six in a whorl."

Stackys sylvatica

"The European hedge woundwort, a tall hairy plant, with heart-shaped leaves, and numerous whorls of…

"1. Stackhousia; 2. its corolla; 3. calyx, &c." -Lindley, 1853

Stackhousia

"1. Stackhousia; 2. its corolla; 3. calyx, &c." -Lindley, 1853

Extrorse or outward facing stamens of the flower of Hippocratea, a genus of staff vine.

Extrorse Stamens of Flower of Staff Vine

Extrorse or outward facing stamens of the flower of Hippocratea, a genus of staff vine.

The pollen bearing organ of the flower.

Stamen

The pollen bearing organ of the flower.

Cells of anther each opening by an uplifted valve.

Stamen of Barberry

Cells of anther each opening by an uplifted valve.

Very short filament bearing a single anther-cell; it is open from top to bottom, showing the pollen within.

Stamen of Globe Amaranth

Very short filament bearing a single anther-cell; it is open from top to bottom, showing the pollen…

Stamen of Mallow; the anther supposed to answer to that of Pentstemon pubescens, but the cells completely confluent into one.

Stamen of Mallow

Stamen of Mallow; the anther supposed to answer to that of Pentstemon pubescens, but the cells completely…

Stamen of Moonseed, with anther cut across; this 4-celled, or rather 4-locellate.

Stamen of Moonseed

Stamen of Moonseed, with anther cut across; this 4-celled, or rather 4-locellate.

Stamen of Pentstemon pubescens; the two-anther-cells diverging, and almost confluent.

Stamen of Pentstemon

Stamen of Pentstemon pubescens; the two-anther-cells diverging, and almost confluent.

Stamens of the mint family. Of a Monarda: the two anther-cells with bases divergent so that they are transverse to the filament, and their contiguous tips confluent, so as to form one cell opening by a continuous line. Fig 301; Of a Calamintha: the broad connective separating the two cells. Fig 302; Of a Sage (Salvia Texana; with long and slender connective resembling forks of the filament, one bearing a good anther-cell wholly wanting. Fig 304; Of a White Sage, Audibertia grandiflora; the lower fork of connective a mere vestige. Fig. 305; Of another White Sage (A. stachyoides), the lower fork of connective suppressed.

Stamens

Stamens of the mint family. Of a Monarda: the two anther-cells with bases divergent so that they are…

Cells opening by a terminal hole.

Stamens of Pyrola

Cells opening by a terminal hole.

Staminate flower of Moonseed.

Staminate Moonseed

Staminate flower of Moonseed.

Flower of Standing Cypress (Gilia coronopifolia); gamopetalous: the tube answering to the long claws of the Soapwort, except that they are coalescent: the limb or border (the spreading part above) is <em>five-parted</em>, that is, the petals not there united except at very base.

Standing Cypress

Flower of Standing Cypress (Gilia coronopifolia); gamopetalous: the tube answering to the long claws…

Stapelia is a genus of large flowering plants of the Apocynaceae family.

Stapelia

Stapelia is a genus of large flowering plants of the Apocynaceae family.

"Star of Bethlehem, or Ornithogalum, a genus of bulbous plants belonging to the order Liliacae."&mdash;Finley, 1917

Star of Bethlehem

"Star of Bethlehem, or Ornithogalum, a genus of bulbous plants belonging to the order Liliacae."—Finley,…

The starflower or Calytrix and a section of its flower.

Starflower

The starflower or Calytrix and a section of its flower.

A species of orchids that are native to south America.

Scuticaria Steelei

A species of orchids that are native to south America.