The plant and flower of P. dasycaulon . A. A tree growing in the study site during the growth period. B. New flush developing before the onset of flowering from the apical regions of the plant. The colour of newly emerged leaf is light green. C. An inflorescence during flowring peak. D. A single flower during anthesis. The anthers are not dehisced. E. A single flower 12 hour after anthesis. The anthers have dehisced. F. Calyx after removing all other floral parts.