Loganiaceae /
 Machinka

Species in the genus Mitrasacme:

Mitrasacme pygmaea / Ainae アイナエ

It is a small annual species that inhabits moist to wet grasslands. Mitrasacme pygmaea does not exceed 10cm in height. Besides, most of the body is occupied by a flower stalk; the herb is tiny, at most 1cm tall. Leaves are opposite, in two to four pairs, oval or oblong, 0.7-1.5cm long and 0.3-0.6cm wide, with pointed tips. White flowers, each 2.5mm in diameter, appear on a peduncle that emerges from the bract; they bloom in August-September.