Koelreuteria paniculata Laxmann
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad Tree

Koelreuteria paniculata A. A. Reznicek

An ornamental tree from China grown for the large panicles of bright yellow flowers in summer; seeding readily in gardens and arboreta, and occasionally onto roadsides and adjacent fields.

This is a small tree with rough bark and distinctive pinnate-pinnatifid or sometimes bipinnate leaves well known as somewhat invasive south of Michigan. The fruits are quite like those of Staphylea, but born in terminal panicles.  First collected by S. J. Trull in 2018 in Allegan Co., with some uncertainty about the occurrence perhaps having been planted, and by W. S. and S. V. Martinus in 2019 in Ottawa Co., seeding abundantly into openings.   


Allegan County
Ottawa County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. April 2, 2020. https://michiganflora.net/species.aspx?id=2957.