These family crests (In Japanese, KAMON) are called 'Omodaka-Mon' in JAPAN.
The arrowhead, a perpetual of the water plantain family, was alternatively called shogunso (victorious army grass). Because of this connotation, it was a pattern favored for the crests of samurai families. (From 'Family Crests of Japan' ICG Muse, Inc.2001)
|Butterfly-shaped arrowhead||Crane-shaped arrowhead||Top-view double arrowhead leaves with blossoms
Ennosuke Ichikawa (Omodakaya)
in rice cake
|Arrowhead & water||Choshu variant Arrowhead||Nagato Arrowhead|