Prockia crucis

Prockia crucis, most commonly known as guasimilla, is a species of flowering plant in the family Salicaceae. It is the type species of its genus, Prockia. It goes by other names as well, including albaricoquillo, botón de oro, calabura, canaiuva, canudeiro, cuiteleiro, guaçatunga-coração, guacimilla de costa, gauí, guaiapá-manso, marmeladinha, and uaí.

The plant has a very wide distribution, spanning from Central America down to Argentina. It also has a presence in most of the Caribbean and South America, throughout many countries. The species is commonly found in disturbed habitats, humid forests, and tropical to subtropical regions at elevations of 80–2,500 m (260–8,200 ft). It is also found within bush vegetation, gallery forests, forest borders with grassland, secondary forests, tropical deciduous forests, semi-evergreen tropical forests, oak forests, thorny rainforests, shrublands, on limestone, and in serpentine soils.