Chabana

Chabana (茶花, literally "tea flowers"), is a general word used in the Japanese language, for the arrangement of flowers at a Japanese tea ceremony. The flowers are not arranged in any special way, the method for arranging these flowers is known as "thrown in". 
This style of flower arranging is recognised as a particular type of Ikebana (生け花, "arranging flowers"), also known as Kādo (華道, the "way of flowers"), which has its beginnings in Buddhist flower offerings.
Chabana in particular, refers to a flower display for the room where the tea ceremony is to be held, the Chashitsu (茶室, literally "tea rooms").