The conifers
The conifer twigs of the Lower Permian often resemble the branches of
the extant Norfolk Island Pine (Araucaria heterophylla), but they
are not closely related to this plant. They bear rigid, needle-like to elongated
triangular, decurrent leaflets, which are often S-shaped.
The axes of the penultimate order are more or less branched like a feather:
they bear two rows of parallel twigs all lying in the same plane.
Just
what is Walchia?