Native- vs. introduced-range Polygonum cespitosum traits

<p>In a common-garden experiment, <em>Polygonum cespitosum </em>plants (N=660) from native- and introduced-range populations were grown under uniform, favorable conditions in a glasshouse and their traits compared. Introduced-range populations were sampled from the eastern USA (N=17), and native-range populations were sampled from a climate-matched region in northern Japan (N=18). Parental growing conditions were standardized prior to the experiment.</p>