Source : Webster's Revised Unabridged Dictionary (1913)

Leopard's bane \Leop"ard's bane`\ (l[e^]p"[~e]rdz b[=a]n`).
   (Bot.)
   A name of several harmless plants, as {Arnica montana},
   {Senecio Doronicum}, and {Paris quadrifolia}.

Mountain \Moun"tain\, a.
   1. Of or pertaining to a mountain or mountains; growing or
      living on a mountain; found on or peculiar to mountains;
      among mountains; as, a mountain torrent; mountain pines;
      mountain goats; mountain air; mountain howitzer.

   2. Like a mountain; mountainous; vast; very great.

            The high, the mountain majesty of worth. --Byron.

   {Mountain antelope} (Zo["o]l.), the goral.

   {Mountain ash} (Bot.), an ornamental tree, the {Pyrus
      (Sorbus) Americana}, producing beautiful bunches of red
      berries. Its leaves are pinnate, and its flowers white,
      growing in fragrant clusters. The European species is the
      {P. aucuparia}, or rowan tree.

   {Mountain barometer}, a portable barometer, adapted for safe
      transportation, used in measuring the heights of
      mountains.

   {Mountain beaver} (Zo["o]l.), the sewellel.

   {Mountain blue} (Min.), blue carbonate of copper; azurite.

   {Mountain cat} (Zo["o]l.), the catamount. See {Catamount}.

   {Mountain chain}, a series of contiguous mountain ranges,
      generally in parallel or consecutive lines or curves.

   {Mountain cock} (Zo["o]l.), capercailzie. See {Capercailzie}.
      

   {Mountain cork} (Min.), a variety of asbestus, resembling
      cork in its texture.

   {Mountain crystal}. See under {Crystal}.

   {Mountain damson} (Bot.), a large tree of the genus
      {Simaruba} ({S. amarga}) growing in the West Indies, which
      affords a bitter tonic and astringent, sometimes used in
      medicine.

   {Mountain dew}, Scotch whisky, so called because often
      illicitly distilled among the mountains. [Humorous]

   {Mountain ebony} (Bot.), a small leguminous tree ({Bauhinia
      variegata}) of the East and West Indies; -- so called
      because of its dark wood. The bark is used medicinally and
      in tanning.

   {Mountain flax} (Min.), a variety of asbestus, having very
      fine fibers; amianthus. See {Amianthus}.

   {Mountain fringe} (Bot.), climbing fumitory. See under
      {Fumitory}.

   {Mountain goat}. (Zo["o]l.) See {Mazama}.

   {Mountain green}. (Min.)
      (a) Green malachite, or carbonate of copper.
      (b) See {Green earth}, under {Green}, a.

   {Mountain holly} (Bot.), a branching shrub ({Nemopanthes
      Canadensis}), having smooth oblong leaves and red berries.
      It is found in the Northern United States.

   {Mountain laurel} (Bot.), an American shrub ({Kalmia
      latifolia}) with glossy evergreen leaves and showy
      clusters of rose-colored or white flowers. The foliage is
      poisonous. Called also {American laurel}, {ivy bush}, and
      {calico bush}. See {Kalmia}.

   {Mountain leather} (Min.), a variety of asbestus, resembling
      leather in its texture.

   {Mountain licorice} (Bot.), a plant of the genus {Trifolium}
      ({T. Alpinum}).

   {Mountain limestone} (Geol.), a series of marine limestone
      strata below the coal measures, and above the old red
      standstone of Great Britain. See Chart of {Geology}.

   {Mountain linnet} (Zo["o]l.), the twite.

   {Mountain magpie}. (Zo["o]l.)
      (a) The yaffle, or green woodpecker.
      (b) The European gray shrike.

   {Mountain mahogany} (Bot.) See under {Mahogany}.

   {Mountain meal} (Min.), a light powdery variety of calcite,
      occurring as an efflorescence.

   {Mountain milk} (Min.), a soft spongy variety of carbonate of
      lime.

   {Mountain mint}. (Bot.) See {Mint}.

   {Mountain ousel} (Zo["o]l.), the ring ousel; -- called also
      {mountain thrush} and {mountain colley}. See {Ousel}.

   {Mountain pride}, or {Mountain green} (Bot.), a tree of
      Jamaica ({Spathelia simplex}), which has an unbranched
      palmlike stem, and a terminal cluster of large, pinnate
      leaves.

   {Mountain quail} (Zo["o]l.), the plumed partridge ({Oreortyx
      pictus}) of California. It has two long, slender,
      plumelike feathers on the head. The throat and sides are
      chestnut; the belly is brown with transverse bars of black
      and white; the neck and breast are dark gray.

   {Mountain range}, a series of mountains closely related in
      position and direction.

   {Mountain rice}. (Bot.)
      (a) An upland variety of rice, grown without irrigation,
          in some parts of Asia, Europe, and the United States.
      (b) An American genus of grasses ({Oryzopsis}).

   {Mountain rose} (Bot.), a species of rose with solitary
      flowers, growing in the mountains of Europe ({Rosa
      alpina}).

   {Mountain soap} (Min.), a soft earthy mineral, of a brownish
      color, used in crayon painting; saxonite.

   {Mountain sorrel} (Bot.), a low perennial plant ({Oxyria
      digyna} with rounded kidney-form leaves, and small
      greenish flowers, found in the White Mountains of New
      Hampshire, and in high northern latitudes. --Gray.

   {Mountain sparrow} (Zo["o]l.), the European tree sparrow.

   {Mountain spinach}. (Bot.) See {Orach}.

   {Mountain tobacco} (Bot.), a composite plant ({Arnica
      montana}) of Europe; called also {leopard's bane}.

   {Mountain witch} (Zo["o]l.), a ground pigeon of Jamaica, of
      the genus {Geotrygon}.

Tobacco \To*bac"co\, n. [Sp. tabaco, fr. the Indian tabaco the
   tube or pipe in which the Indians or Caribbees smoked this
   plant. Some derive the word from Tabaco, a province of
   Yucatan, where it was said to be first found by the
   Spaniards; others from the island of Tobago, one of the
   Caribbees. But these derivations are very doubtful.]
   1. (Bot.) An American plant ({Nicotiana Tabacum}) of the
      Nightshade family, much used for smoking and chewing, and
      as snuff. As a medicine, it is narcotic, emetic, and
      cathartic. Tobacco has a strong, peculiar smell, and an
      acrid taste.

   Note: The name is extended to other species of the genus, and
         to some unrelated plants, as Indian tobacco ({Nicotiana
         rustica}, and also {Lobelia inflata}), mountain tobacco
         ({Arnica montana}), and Shiraz tobacco ({Nicotiana
         Persica}).

   2. The leaves of the plant prepared for smoking, chewing,
      etc., by being dried, cured, and manufactured in various
      ways.

   {Tobacco box} (Zo["o]l.), the common American skate.

   {Tobacco camphor}. (Chem.) See {Nicotianine}.

   {Tobacco man}, a tobacconist. [R.]

   {Tobacco pipe}.
      (a) A pipe used for smoking, made of baked clay, wood, or
          other material.
      (b) (Bot.) Same as {Indian pipe}, under {Indian}.

   {Tobacco-pipe clay} (Min.), a species of clay used in making
      tobacco pipes; -- called also {cimolite}.

   {Tobacco-pipe fish}. (Zo["o]l.) See {Pipemouth}.

   {Tobacco stopper}, a small plug for pressing down the tobacco
      in a pipe as it is smoked.

   {Tobacco worm} (Zo["o]l.), the larva of a large hawk moth
      ({Sphinx, or Phlegethontius, Carolina}). It is dark green,
      with seven oblique white stripes bordered above with dark
      brown on each side of the body. It feeds upon the leaves
      of tobacco and tomato plants, and is often very injurious
      to the tobacco crop. See Illust. of {Hawk moth}.

Arnica \Ar"ni*ca\, n. [Prob. a corruption of ptarmica.] (Bot.)
   A genus of plants; also, the most important species ({Arnica
   montana}), native of the mountains of Europe, used in
   medicine as a narcotic and stimulant.

   Note: The tincture of arnica is applied externally as a
         remedy for bruises, sprains, etc.

Arnicin \Ar"ni*cin\, n. [See {Arnica}.] (Chem.)
   An active principle of {Arnica montana}. It is a bitter
   resin.

Source : WordNet®

Arnica montana
     n : herb of pasture and open woodland throughout most of Europe
         and western Asia having orange-yellow daisylike flower
         heads that when dried are used as a stimulant and to
         treat bruises and swellings