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An alkaloid obtained from the arnica plant.

Belonging to, or resembling, the Arum family of plants.

The quality or principle of plants or other substances which constitutes their fragrance; agreeable odor; as, the aroma of coffee.

A plant, drug, or medicine, characterized by a fragrant smell, and usually by a warm, pungent taste, as ginger, cinnamon spices.

A distilled water from a variety of aromatic plants, as rosemary, millefoil, etc.; -- originally used as a vulnerary in gunshot wounds. Parr.

and systematic classification; as, arrangement of one's dress; the Linnæan arrangement of plants.

Destitute of a true root, as a parasitical plant.

The sharp edge or salient angle formed by two surfaces meeting each other, whether plane or curved; -- applied particularly to the edges in moldings, and to the raised edges which separate the flutings in a Doric column. P. Cyc. Arris fillet, a triangular piece of wood used to raise the slates of a roof against a chimn…

An herbaceous grasslike plant (Triglochin palustre, and other species) with pods opening so as to suggest barbed arrowheads.

An aquatic plant of the genus Sagittaria, esp. S. sagittifolia, -- named from the shape of the leaves.

A west Indian plant of the genus Maranta, esp. M. arundinacea, now cultivated in many hot countries. It said that the Indians used the roots to neutralize the venom in wounds made by poisoned arrows.

Skillful plan; device. They employed every art to soothe . . . the discontented warriors. Macaulay.

A genus of plants including the plants called mugwort, southernwood, and wormwood. Of these A. absinthium, or common wormwood, is well known, and A. tridentata is the sage brush of the Rocky Mountain region.

The Cynara scolymus, a plant somewhat resembling a thistle, with a dilated, imbricated, and prickly involucre. The head (to which the name is also applied) is composed of numerous oval scales, inclosing the florets, sitting on a broad receptacle, which, with the fleshy base of the scales, is much esteemed as an article…

d; formed with joints; consisting of segments united by joints; as, articulate animals or plants.

The connection of the parts of a plant by joints, as in pods.

em. Porteus. O, how unlike the complex works of man, Heaven's easy, artless, unencumbered plan! Cowper.

A genus of plants found in central Europe and about the Mediterranean, having flowers on a spadix inclosed in a spathe. The cuckoopint of the English is an example. Our common arums the lords and ladies of village children. Lubbock.

The fetid gum resin or inspissated juice of a large umbelliferous plant (Ferula asafoetida) of Persia and the East India. It is used in medicine as an antispasmodic. [Written also assafoetida.]

An acrid herbaceous plant (Asarum Europæum), the leaves and roots of which are emetic and cathartic. It is principally used in cephalic snuffs.