"This variety consists of numerous fibers proceeding from the neck of the plant, and may be seen in most grasses and grains."—Darby, 1855

Fibrous Root

"This variety consists of numerous fibers proceeding from the neck of the plant, and may be seen in…

"Where the root tapers toward each extremity, as seen in the Radish."—Darby, 1855

Fusiform Root

"Where the root tapers toward each extremity, as seen in the Radish."—Darby, 1855

"The variety which is very large at the base, but tapers abruptly, as in the Turnip."—Darby, 1855

Napiform Root

"The variety which is very large at the base, but tapers abruptly, as in the Turnip."—Darby, 1855

This shows real roots of the potato, as well as several branches of the stem, with potatoes forming in all stages at their tips.

Potato Root

This shows real roots of the potato, as well as several branches of the stem, with potatoes forming…

A rootstock is any kind of horizontal stem or branch growing under ground.

Quick-grass Root

A rootstock is any kind of horizontal stem or branch growing under ground.

So the biennial root becomes large and heavy, being a storehouse of nourishing matter, (Gray, 1858).

Radish Root

So the biennial root becomes large and heavy, being a storehouse of nourishing matter, (Gray, 1858).

"The Rhizoma or Rootstock grows in a nearly horizontal direction, emitting roots from its under side, increasing by one extremity only, at which it puts forth leaves and flower-stems, and gradually dying at the other. Its surface is generally marked by irregular ridges formed by the bases of decayed leaves."—Darby, 1855

Rhizoma Root

"The Rhizoma or Rootstock grows in a nearly horizontal direction, emitting roots from its under side,…

In some perennial herbs, prostrate stems or branches underground are thickened with this store of nourishment for their whole length.

Solomon's Seal Root

In some perennial herbs, prostrate stems or branches underground are thickened with this store of nourishment…

"When the root sinks perpendicularly into the earth, and tapers regularly from the base to the apex with very few fibrous radicles. This variety contains some of the most important garden vegetables, and it is seldom found of natural growth, being almost uniformly produced by cultivation."—Darby, 1855

Tap Root

"When the root sinks perpendicularly into the earth, and tapers regularly from the base to the apex…

Roots of the turnip are designed to absorb moisture and matter from soil, and to hold nutrients for use.

Turnip Root

Roots of the turnip are designed to absorb moisture and matter from soil, and to hold nutrients for…

"Didymous roots are those which produce a tubercle each year, and when the tubercle of one year arrives at nearly the dimensions of the one of the preceding year, they answer to the form indicated by the term applied to them; that is, double or twin roots."—Darby, 1855

Didymous Roots

"Didymous roots are those which produce a tubercle each year, and when the tubercle of one year arrives…

A normal rye plant.

Rye

A normal rye plant.

The scammony (Convolvulus scammonia) is a flowering plant of the bindweed family. R, the root.

Scammony

The scammony (Convolvulus scammonia) is a flowering plant of the bindweed family. R, the root.

"<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…

Rootstock of Solomon's Seal, with the bottom of the stalk of the season, and the bud for the next year's growth.

Solomon's Seal

Rootstock of Solomon's Seal, with the bottom of the stalk of the season, and the bud for the next year's…

Portion of the spinal cord. 1: Body of cord; 2: A spinal nerve from left side of cord; 3: Anterior roots of a nerve; 4: Posterior roots.

Spinal Cord

Portion of the spinal cord. 1: Body of cord; 2: A spinal nerve from left side of cord; 3: Anterior roots…

The Sedum acre or Goldmoss Stonecrop is a creeping plant native to Europe.

Goldmoss Stonecrop

The Sedum acre or Goldmoss Stonecrop is a creeping plant native to Europe.

"In botany, a runner; a weak, creeping shoot sent out from the bottom of the stem, and rooting and forming new plants at the nodes, as in the strawberry." -Whitney, 1911

Strawberry Flagellum

"In botany, a runner; a weak, creeping shoot sent out from the bottom of the stem, and rooting and forming…

A member of the morning glory family, it is an edible root. Grown and eten because of its sweetness. The vine has violet and/or pink flowers.

Sweet Potato

A member of the morning glory family, it is an edible root. Grown and eten because of its sweetness.…

An illustration of a simple tree with roots.

Tree with Roots

An illustration of a simple tree with roots.

This is a fruit tree drawing, possibly and apple tree. Its roots are shown in the shape of a ball and there are three birds circulating the tree.

Fruit Tree

This is a fruit tree drawing, possibly and apple tree. Its roots are shown in the shape of a ball and…

This is a fruit tree drawing, possibly and apple tree. Its roots are shown in the shape of a ball and there are three birds circulating the tree.

Fruit Tree

This is a fruit tree drawing, possibly and apple tree. Its roots are shown in the shape of a ball and…

The very short rootstock and strong terminal bud of a Trillium or Birthroot.

Trillium

The very short rootstock and strong terminal bud of a Trillium or Birthroot.

Corm of Indian Turnip.

Turnip

Corm of Indian Turnip.

Verbena cutting, well rooted.

Verbena

Verbena cutting, well rooted.

A vine beginning to grow.

Vine

A vine beginning to grow.

A ground leaf of White Lily, its base (cut across) thickened into a bulb-scale. This plainly shows that bulb-scales are leaves.

White Lily

A ground leaf of White Lily, its base (cut across) thickened into a bulb-scale. This plainly shows that…

Bulb of a Wild Lily.

Wild Lily

Bulb of a Wild Lily.

Wild Lily divided lengthwise, showing two forming buds of the next generation.

Wild Lily Cross-Section

Wild Lily divided lengthwise, showing two forming buds of the next generation.

A plant that has a starchy root used in cooking.

Yam

A plant that has a starchy root used in cooking.