Botanical Nerd Word: Pterocaulous

Euonymus alatus stem showing wings

Pterocaulous: With winged stems.*

Euonymus alatus, also known as winged euonymus or burning bush, is a common garden shrub from Asia that has become invasive in North America. It has corky wings along its stems. The species name, alatus, means ‘winged.’

*Harris, J.G., Harris, M.W. (2001). Plant identification terminology: An illustrated glossary (2nd ed.). Spring Lake: Spring Lake Publishing.