Degree of style coiling is associated with corolla-tube length in the nectarless flowers of Roscoea schneideriana
Bo Wang, Ze-Yu Tong, Ying-Ze Xiong, Xiao-Fan Wang, W. Scott Armbruster, Shuang-Quan Huang
Plant Diversity . 2023, (06): 748 -751 .  DOI: 10.1016/j.pld.2022.12.004