Hydrocotyle verticillata

Also known as Whorled Pennywort, Whorled Marshpennywort, Shield Pennywort

Whorled marshpennywort spreads across wet soils and shallow water via slender, creeping rhizomes that sprout miniature umbrella-like leaves at every node. Its circular, peltate foliage catches the light along wetland margins, where the plant forms dense, low-growing mats that stabilize soft banks. Tiny greenish-white flowers emerge in stacked, whorled spikes that distinguish it from other creeping wetland pennyworts.