Japanese haiku qualify as formal verse in Japanese, and in some ways in English. Traditionally they have three standard aspects as explained in Wikipedia:

“Haiku stone” by cisko 

The essence of haiku is “cutting” (kiru). This is often represented by the juxtaposition of two images or ideas and a kireji (“cutting word”) between them. This is the equivalent of the volta in a sonnet, the turn from the initial argument or exposition to its extension or contradiction.
Traditional haiku often consist of 17 “syllables” in three phrases of 5, 7, and 5. This is not standard in English verse, where the number of stressed syllables (i.e. the number of feet) has always been more important than the total number of syllables. Even where there are a fixed number of syllables in the foot of the particular meter being used, the feet overrule the syllables.
A kigo (seasonal reference), usually drawn from an extensive but defined list of such terms. English verse is by no means hostile to seasonal references, but is considered superior when it uses fresh words rather than drawing on a predefined list.

In addition, there is no value placed on rhyme, on the meter of the lines, or on the inclusion of either alliteration or assonance. It may be verse in Japanese, but in English the haiku (as defined above) will normally be a sentence of prose that has been artificially broken into three lines.

HAIKU ON VERSE

Haiku challenge my
Fundamental sense of verse:
(Insert last line here).

The above was published in Snakeskin in April 2017. And it doesn’t even have a kigo.