Long-term stomatal and leaf trait dynamics in invasive knotweeds in Europe - insights from 160 years of herbarium records
Felix A. Hahn, Franziska M. Willems, Luzia Hamma, Farah Badreldin, Christiane Karasch-Wittmann, Ann Bogaerts, Madalin Parepa, Uta Gruenert, Christina L. Richards, Oliver Bossdorf, Ramona-Elena Irimia
This study uses herbarium records to analyze long-term changes in stomatal and leaf traits of invasive knotweeds over 160 years, finding shifts in stomatal size and shape linked to CO2 levels and climate.
bioRxiv · Jul 8, 2026 · PreprintEcology