The white flowering shrub photo was taken today at Pearson Falls in Saluda, NC. Even the guide on duty did not know what it was. I usually am able to identify plants on line or in a book, but these two have me stumped. Thanks so very much for your help.
Ellie, Your plant is a non-native shrub that was either planted or escaped from cultivation. It is called Deutzia, both the scientific and common name. I am not positive what species yours is – but it is most likely Deutzia gracilis. See these links:
It reminds me of a Styrax, but Deutzia has opposite leaves and Styrax leaves are alternate. Deutzia is a very close relative of Philadelphus [mock orange], but Philadelphus has 4 petals and Deutzia has five.
I hope this helps.
Steve Hill – South Carolina Native Plant Society [SCNPS]
Dr. Steven R. Hill
University of Illinois