Container having a petaloid base and groove

A container (1) made of plastic material comprising a body (2) and a petaloid-shaped bottom (3) extending the body (2), the petaloid-shaped bottom (3) comprising a bottom wall (4) of general convex shape toward the outside, from which feet (7) formed by protrusions project, separated two at a time by portions of the bottom wall forming recessed valleys (12) that extend radially to a periphery (8) of the petaloid-shaped bottom (3), the bottom (3) further comprising a series of radial extension grooves (17) that extend at least partially at the bottom of the recessed valleys (12), wherein,

• the feet (7) extend axially over a height (D) that is less than or equal to 1/5 of a radial extension (A) of the petaloid-shaped bottom (3), the height (D) being measured axially from a standing plane (10) to the periphery (8) of the petaloid-shaped bottom (3);
• the petaloid-shaped bottom (3) comprises a central dome (5) with concavity turned toward the outside of the container (1);
• each of the series of radial extension grooves (17) has an inner section (17A) that radially goes beyond a respective one of the recessed valleys (12) and straddles the central dome (5), and an outer section (17B) that extends radially in the continuation of the inner section (17A), at the bottom of the respective one of the recessed valleys (12),
• wherein each of the series of radial extension grooves (17) has a contour that is tapering from the inside to the outside of the petaloid-shaped bottom (3),
• wherein each of the series of radial extension grooves (17) ends on the outside by a pointed outer end (18), and
• wherein the outer ends (18) each of the series of radial extension grooves (17) are placed in a circle that has a diameter (J) that is less than a radial extension (C) of a standing plane (10) defined by apexes (9) of the feet (7).