Japanese poetry are a short, 3-line verse form, which have achieved significant global popularity, and the haiku form has been adapted from Japanese into other languages. Typical of the haiku form is the metrical pattern of 3 lines with a distribution of 5, 7, and 5 "on" (also known as morae) within those lines. Other features include the juxtaposition of two images or ideas with a "kireji" ("cutting word") between them, and a "kigo", or seasonal reference, usually drawn from a "saijiki", or traditional list of such words. Much of Japanese poetry has been transmitted historically through published anthologies, many of them
Haiku theoretician F. S. Flint, who passed on Couchoud's ideas to other members of the proto-Imagist Poets' Club such as Ezra Pound. Amy Lowell made a trip to London to meet Pound and find out about haiku. She returned to the United States where she worked to interest others in this "new" form. Haiku subsequently had a considerable influence on Imagists in the 1910s, notably Pound's "In a Station of the Metro" of 1913, but, notwithstanding several efforts by Yone Noguchi to explain "the hokku spirit", there was as yet little understanding of the form and its history. R. H. Blyth