The heath communities consist of six separate subgroups:

The swamp and tall-herb fen communities consist of three separate subgroups:

The three terms Beauty, Goodness, Truth form a separate subgroup within the general family of transcendentals and their development can be considered separately.

Category G1a has a separate subgroup based on the presence of the value of 8 at short tandem repeat marker DYS494.

The RS CVn systems are divided into five separate subgroups:

The mire communities consist of a number of separate subgroups.

The salt-marsh communities consist of four separate subgroups:

Within the Algonquian family, only Eastern Algonquian constitutes a separate genetic subgroup.

Eastern Algonquian constitutes a separate genetic subgroup within Algonquian.

The open habitat communities consist of eight separate subgroups: