M. rosea

M. rosea may refer to:
 * Marginella rosea, a species of sea snail
 * Melibe rosea, the cowled nudibranch, a dendronotid nudibranch species only found in South Africa
 * Mesua rosea, a flowering plant species found only in Malaysia
 * "Microvirga rosea", a species of alphaproteobacterium
 * Mycena rosea, the rosy bonnet, a mushroom species

Synonyms

 * Miltonia rosea, a synonym for Miltonia moreliana
 * Misumena rosea, a synonym for Misumenops asperatus