Viola curvistylis

 Viola curvistylis Boissieu ex Gagnep., Fl. Indo-Chine [P.H. Lecomte et al.] Suppl.: 179, gallice (1939).

Viola curvistylis Boissieu ex Gagnep., Photo by Tấn Trịnh

Vietnamese name:

Hoa tím vòi cong