The Collaborative International Dictionary of English v.0.48:

Mallow \Mal"low\, Mallows \Mal"lows\, n. [OE. malwe, AS. mealwe,
   fr. L. malva, akin to Gr. mala`chh; cf. mala`ssein to soften,
   malako`s soft. Named either from its softening or relaxing
   properties, or from its soft downy leaves. Cf. Mauve,
   Malachite.] (Bot.)
   A genus of plants (Malva) having mucilaginous qualities.
   See Malvaceous.
   [1913 Webster]

   Note: The flowers of the common mallow (Malva sylvestris)
         are used in medicine. The dwarf mallow (Malva
         rotundifolia) is a common weed, and its flattened,
         dick-shaped fruits are called cheeses by children. Tree
         mallow (Malva Mauritiana and Lavatera arborea),
         musk mallow (Malva moschata), rose mallow or
         hollyhock, and curled mallow (Malva crispa), are less
         commonly seen.
         [1913 Webster]

   Indian mallow. See Abutilon.

   Jew's mallow, a plant (Corchorus olitorius) used as a pot
      herb by the Jews of Egypt and Syria.

   Marsh mallow. See under Marsh.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Malva sylvestris \Malva sylvestris\prop. n. (Bot.)
   The species name of the tall mallow, an erect or decumbent
   Old World perennial with axillary clusters of rosy-purple
   flowers; introduced into the U. S.

   Syn: tall mallow, high mallow, cheese, cheeseflower.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Mauve \Mauve\ (m[=o]v), n. [F., mallow, L. malva. So named from
   the similarity of the color to that of the petals of common
   mallow, Malva sylvestris. See Mallow.]
   A color of a delicate purple, violet, or lilac.
   [1913 Webster]

   Mauve aniline (Chem.), a dyestuff produced artificially by
      the oxidation of commercial aniline, and the first
      discovered of the so-called coal-tar, or aniline, dyes. It
      consists of the sulphate of mauve["i]ne, and is a dark
      brown or bronze amorphous powder, which dissolves to a
      beatiful purple color. Called also aniline purple,
      violine, Perkin's mauve, etc.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

cheeseflower \cheeseflower\ n.
   an erect or decumbent Old World perennial (Malva
   sylvestris) with axillary clusters of rosy-purple flowers;
   introduced into the U. S.

   Syn: tall mallow, high mallow, cheese, Malva sylvestris.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Malva sylvestris
    n 1: erect or decumbent Old World perennial with axillary
         clusters of rosy-purple flowers; introduced in United
         States [syn: tall mallow, high mallow, cheese,
         cheeseflower, Malva sylvestris]