Plesiomorphic and shared with other taxa. A symplesiomorphic character state is a character state which occurs in at least two taxa in a relevant part of the phylogeny of those taxa.
cladogram of two genera (blue and red); the black bullet 0 represent a symplesiomorphic character state for the 5 species of the red genus. It is important to note that in a cladogram only comprising these 5 species (so excluding t1) the character states