[1] : 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
see also:
mauve malachite malva malvaceous malva sylvestris malva rotundifolia 
malva mauritiana lavatera arborea malva moschata malva crispa indian mallow 
abutilon jew's mallow corchorus olitorius marsh mallow marsh 

[2] : WordNet (r) 2.0

mallow
     n : any of various plants of the family malvaceae

Mallow >> M Words
Mallow, definition of term: Mallow
mallow_pag1.html

Marsh Mallow >> M Words
Marsh Mallow, definition of term: Marsh Mallow
marsh+mallow_pag1.html