The wind-pollinated apetalous flowers are produced on second-year shoots in April; the variably-shaped samarae < 25 mm long by 20 mm wide ripen in June.
The text describes the timing of flowering and seed pod development for a plant species that is wind-pollinated and has flowers without petals. The flowers appear on second-year shoots in April, while the samarae (seed pods) mature in June and are small, measuring less than 25 mm long by 20 mm wide.