“…Flowers are critical to reproduction in angiosperms and have been credited with promoting diversification and the rapid spread of flowering plants globally (Sanderson & Donoghue, 1994;Crepet & Niklas, 2009;Leslie et al, 2021). Although they are typically short-lived, flowers require resources, such as carbon, water, and nutrients, for their production and maintenance (Reekie & Bazzaz, 1987a,b;Ashman & Schoen, 1994;Song et al, 2022). Water, in particular, is needed throughout development and anthesis for a variety of functions, including driving growth and expansion, keeping flowers turgid and on display for pollinators, providing rewards such as nectar, and for regulating temperature (Bazzaz et al, 1987;Galen et al, 1999;Patiño & Grace, 2002;Chapotin et al, 2003;De la Barrera & Nobel, 2004;Roddy & Dawson, 2012;Roddy, 2019;Treado et al, 2022).…”