foc
《中国植物志》英文修订版
Flora of China
Flowering and Fruiting Time

20. Flowering and Fruiting Time:

Flowering and/or fruiting time will be given by months using the first three letters of the month (e.g., "Fl. Jun--Aug, fr. Oct--Nov" and "Fl. and fr. Aug--Oct"). If only a general flowering and/or fruiting period is known, the season can be given (e.g., "Fl. late spring--summer").