Thank you to the readers whose thoughtful responses appeared these past two days. Pam and I were caring for two grandchildren and, last evening after their Mom picked them up, I sat down with “The Botanical Garden” by Phillips and Rix, Volume I (2002, Firefly Books, Buffalo, New York and Willowdale, Ontario) and a sprig of the leaves and flowers and narrowed the choices to the genus Weigela of the family Caprifoliaceae.
Native to Asia (China, Korea, northeastern Siberia, and Japan), it was cultivated in France in the late 19th Century and is popular in cold climates, where it does well. These plants have been outside the kitchen window of our home for as long a Pam can remember (back to the 1960s).
I don’t know the exact species, it may be a hybrid of several. What identifies it is the overall growth pattern (tall, though we prune it down so the kitchen window view is not obstructed), the leaves (shape, come in pairs on opposite sides of the branch, tip is pointed and edges have teeth), the flower (tubular, 5 petals, 5 stamen shorter than the petals, 1 simple style with a capitate stigma). “Capitate” means it is round and on top of the style like a head. “Style” is an extension of the ovary though which fertilization by pollen happens. Ours is not fragrant, though some are.
Weigela is the family name of a early professor of Botany (and Chemistry, Pharmacy, Mineralogy) for the university town of Greifswald on the Baltic Sea. There is a botanic garden and arboretum associated with the university and, I suppose, a specimen of the plant was collected for the garden where it is scientifically characterized by the professor.