A Várzea forest is a seasonal floodplain forest inundated by whitewater rivers in the Amazon biome. Echoing the titanic expanse and magnificence of this natural spectacle, “Várzea”, a new exhibition by Brazilian artist Marina Rheingantz, fills the gallery space with four monumental canvases of semi-abstracted flood plains, horizon-less topographies, and lush tropical landscapes. Intensely material, almost sculptural, Rheingantz works from the top down. Thick layers of paint are scraped, sanded and prodded to cast mountains, riverbeds and ocean tides where human traces like utility poles, flags, tents and remnants of roads are swept up by the vast and relentless force of nature. At Bortolami through June 2.