Fig. 1

Materia of B. glabra with differently shaped bracts. Note: The traits of the samples were as follows: (A) single bract, magenta; (B) double bracts, magenta; (C) single bract, white with cherry blossom pink tips; (D) double bracts, white with cherry blossom pink tips; (E) single bract, white; (F) single bract, yellow; (G) butterfly-shaped, red.