Shiroyama-shōnagon

Chinka-en Niigata Retail List, 1986-1987, colour photo front back, description p.1: Small size, red single with degenerate, white stamens. Early flowering. Suitable for tea ceremony. A “wabishin” tsubaki. Named and released by Sōji Okubo in 1974. Note: ‘Shōnagon’ was an official rank in the government system in ancient times. Nippon Tsubaki - Sasanqua Meikan, 1998, p.136 with colour photo; English translation p.93. Leaves elliptic, medium size, flat, recurved. Spreading growth. Selected from wild japonicas growing in Koki Town, Sado Island. From Niigata Prefecture.

誠文堂新光社.1998.《日本ツバキ.サザンカ名鑑》.ｐ.136.  日本ツバキ協会. 2010. 《最新日本ツバキ図鑑》. p.267. 新潟產. [花]紅色、一重、猪口咲き、極小輪、12～4月。[葉]楕円、中形、平坦、反曲。[樹]横張り性。[来歴]ワビ芯ツバキ。佐渡市(旧佐渡郡小木町)の野生ヤブツバキから選抜、大久保操次の命名.発表。写.文/大岡