There are several synonyms for the word "mouse eared chickweed", which is a type of flowering plant. Some of these synonyms include: Cerastium fontanum, Mouse-ear Hawkweed, and Cerastium arvense. Mouse-ear Hawkweed is a common name for a flowering plant that has white flowers, and gets its name from the fact that it resembles the ears of a mouse. Cerastium fontanum is another name for the same species, and is also known as "field chickweed". This particular plant has tiny, white flowers that grow in clusters. Finally, Cerastium arvense is a synonym for this species as well, and it is commonly known as "field mouse-ear chickweed".