Photo of a leafy shoot bearing four, white, funnel-shaped flowers. In fresh flowers, the throat is yellow, but it darkens to orange in older flowers. A bee sits on the edge of one flower. Photo by Scott Zona CC BY-NC 2.0.
There are other ways that flowers change. In Cordia boissieri, only the throat of the tubular flower changes. The throat starts yellow and ages to orange. #Boraginaceae #color #Botany 🌾🧪🌱