A container (1) includes a body and a petaloid base (3) extending the body, the base (3) including feet (7) separated into pairs by recessed valleys (12) that extend radially to an edge (8), the base (3) further including a series of grooves (17) that extend radially, extending at least partially along the bottom of the valleys (13), in which: the feet (7) extend axially to a height less than or equal to 1/5 of a radial extension of the bottom (3); the bottom (3) includes a central dome (5), whose concave part is turned towards the outside of the container (1); each groove (17) has an inner section (17A) that projects radially from the valley (12) and overlaps the dome (5), and an outer section (17B) that extends radially in the continuity of the inner section (17A), at the bottom of the respective valley (12).