Disclosed is a container provided with a petaloid base having feet that form protrusions towards the outside of the container, separated two by two by recessed valleys that extend radially from a central dome of the base to a periphery of same, each foot having a median face with concavity facing outwards and extending via an end face forming a discontinuous seat ring, with a planar cross section, each valley having an inner portion extending from the central dome and an outer portion that meets the periphery, the inner portion and the outer portion being, in cross section in a central radial plane at the valley, straight and together forming an obtuse angle protruding towards the outside of the container and meeting at a vertex situated in line with or very nearly in line with the seat ring.