when you feel to make a haiku, please include a seasonal word in it. If not, it is called Senryu, not haiku. OK?
@PicklesTFC Actually the previous link was a summary in English and the real list is here in Japanese:
https://ja.wikipedia.org/wiki/%E5%AD%A3%E8%AA%9E%E4%B8%80%E8%A6%A7
And if you want, there is a real "long" list too...
@indigo6 Neat! Thank you!