Nageirebana

Nageirebana (抛入花), later also known as simply nageire (抛入 "thrown in"), is a style of ikebana.

Nageirebana has its roots reaching far back to the beginning as a casual style of arranging flowers, in contrast to the more regulated Tatehana of Buddhist altars, which later evolved into the Rikka.

The legend states that a samurai, bored on a hot summer day, threw plant material into the small opening of a tall, deep vase on the opposite corner of the room.

[1] This form utilizes fresh and spontaneous designs that adhere only loosely to the classical principles of triangular structure and color harmony.

Chabana is considered by some as another form of nageirebana since the principles of the casual style are similar.