琉球堇菜 liu qiu jin cai

Basionym: Viola pseudojaponica Nakai, Bot. Mag. (Tokyo) 42: 560. 1928 ["pseudo-japonica"]; V. longistipulata Ha yata; V. nantouensis S. S. Ying; V. stenocentra Hayata ex Nakai; V. taiwaniana Nakai; V. yedoensis var. pseudojaponica (Nakai) T. Hashimoto ex E. Hama & K. Nakai.

Leaves present in winter; petiole distinctly winged; leaf blade triangular-lanceolate, 3-7 × 3.5-5 cm, usually glabrous, rarely pubescent, base truncate or slightly cordate, apex acuminate. Fl. Nov-Apr, fr. May-Oct. 2n = 24*.

Roadsides. Taiwan [Japan (S Kyushu and Ryukyu Islands)].