Blade row group arrangeable in a main flow path of a fluid-flow machine and including N adjacent member blade rows firmly arranged relative to one another in both the meridional direction (m) and the circumferential direction (u), wherein - the number N of the member blade rows is greater than/ equal to 2 and (i) designates the running index with values between 1 and N, - a front member blade row with front blades (i) having a leading edge VK(i) and a trailing edge HK(i) as well as a rear member blade row with rear blades (i+1) having a leading edge VK(i+1) and a trailing edge HK(i+1) are provided in the meridional plane established by the axial direction (x) and the radial direction (r), - the blade row group has two main flow path boundaries, and - the blade profile of the blades (i, i+1) of the member blade rows is firmly connected at at least one of the two main flow path boundaries to a base (B(i), B(i+1)), wherein at least one blade profile of a blade (i, i+1) of one of the two member blade rows extends beyond its base (B(i), B(i+1)), at least where it adjoins the main flow path boundary, and also protrudes onto the base (B(i), B(i+1)) of at least one blade (i, i+1) of the other of the two member blade rows, characterized in that (a) the base (B(i), B(i+1)) of at least one blade (i, i+1) of one of the member blade rows is provided by a blade root, which is formed substantially by an extension of at least part of the blade profile beyond the main flow path boundary, wherein the bases (B(i), B(i+1)) of the blades (i, i+1) of a front and a rear member blade row are connected to one another, (b) the bases (B(i), B(i+1)) of two adjacent member blade rows adjoin one another along at least part of the circumference of the fluid-flow machine. - the number N of the member blade rows is greater than/ equal to 2 and (i) designates the running index with values between 1 and N, - a front member blade row with front blades (i) having a leading edge VK(i) and a trailing edge HK(i) as well as a rear member blade row with rear blades (i+1) having a leading edge VK(i+1) and a trailing edge HK(i+1) are provided in the meridional plane established by the axial direction (x) and the radial direction (r), - the blade row group has two main flow path boundaries, and - the blade profile of the blades (i, i+1) of the member blade rows is firmly connected at at least one of the two main flow path boundaries to a base (B(i), B(i+1)), wherein at least one blade profile of a blade (i, i+1) of one of the two member blade rows extends beyond its base (B(i), B(i+1)), at least where it adjoins the main flow path boundary, and also protrudes onto the base (B(i), B(i+1)) of at least one blade (i, i+1) of the other of the two member blade rows, (a) the base (B(i), B(i+1)) of at least one blade (i, i+1) of one of the member blade rows is provided by a blade root, which is formed substantially by an extension of at least part of the blade profile beyond the main flow path boundary, wherein the bases (B(i), B(i+1)) of the blades (i, i+1) of a front and a rear member blade row are connected to one another, (b) the bases (B(i), B(i+1)) of two adjacent member blade rows adjoin one another along at least part of the circumference of the fluid-flow machine.