The angle of leaf bifurcation varies considerably, ranging from 75 to 180 degrees on a single shoot. Leaves at attached branch bases are simple. Several isolated branches show forked leaves proximally and simple leaves at the apex. Attached forked leaves are 1.2 - 3.4 cm long, whereas simple leaves on the same stems are smaller, ranging up to 1.4 cm long. Internal anatomy of the stems consists of pycnoxylic wood that surrounds a parenchymatous pith with sclerotic plates.
Primary bundles are endarch, and the bark region is relatively thin.
Below the fork, leaves have a single vein within a broad midrib. Epidermal cells are brick-shaped, or isodiametric with a prominent papilla. Uniseriate, multicellular trichomes occur on stem surfaces, at leaf margins and on leaf surfaces. Stomata occur in longitudinal rows within stomatal bands, and consist of a ring of subsidiary cells that surround inconspicuous guard cells. Each subsidiary cell has a single papilla that overarches the stoma.