Coffee plant article coffee beans growing process when coffee flowers bloom?

Coffee plants: several to dozens of clusters in leaf axils, the second to fifth flowers on a flower axis. White, fragrant. The middle and small seeds have 5 petals, and the large seeds have 7 - 8 petals. Flowers tubular, terete. The stamen number is many and petal number is same, stamen stigma is bifid, ovary inferior, it is 2 rooms commonly, also have 1 room or 3 rooms. Insect-pollinated flowers, large-grain and small-grain seeds can self-pollinate, medium-grain seeds are cross-pollinated