Neillia tanakae Franch. et Savatier (syn.: Stephanandra tanakae (Franch. et Savatier) Franch. et Savatier) (Japan) – An exceptional escape from cultivation. A single shrub was recorded in 2012 in Geel (see: http://waarnemingen.be/soort/view/240826).
British claims of this species turned out to be in error for the American Holodiscus bicolor (Pursh) Maxim. (Clement & Foster 1994).
Clement E.J. & Foster M.C. (1994) Alien plants of the British Isles. BSBI, London: XVIII + 590 p.