A Hundred Verses from Old Japan (The Hyakunin-isshu), tr. by William N. Porter, , at sacred-texts.com
MOTHER, for thy sake I have been
Where the wakana grow,
To bring thee back some fresh green leaves
And see—my koromo
Is sprinkled with the snow!
Kwōkō was raised to the throne by the Fujiwara family, when the mad Emperor Yōzei was deposed; he reigned A.D. 885-887, and is said to have composed this verse in honour of his grandmother.
Wakana, literally 'young leaves', is a vegetable in season at the New Year; a koromo is really a priest's garment, but is used here for the Emperor's robe.
In the picture we see the Emperor gathering the fresh green leaves, and the snow falling from the sky.