Rapid Flower-Opening in Iris pseudacorus

摘要

Iris pseudacorus (Yellow Flag Iris), normally produces 1 flower, or exceptionally, it can produce more than 1 flower per stalk at any one time. Flower buds and opened flowers are available at all times every day, but the transition stages between buds and expanded flowers are not. I here report that the flowers open explosively and discuss the proximate cause and the potential significance of this behavior.