ごろくろくせん
新編国歌大観V.270, 日本歌学大系別6
A collection of 146 poems compiled by Fujiwara no Norikane 藤原範兼 in the 12th century. The collection was made as a companion to Fujiwara no Kinto's 三十六人撰, thus the 後 in the title.
春の日のひかりにあたる我なれどかしらの雪となるぞ侘しき (KKS 8)