Leaves in whorls of 4-6, shortly petiolate to subsessile; blade drying papery to subleathery, lanceolate, lanceolate-oblong, or elliptic-oblong, 3-10 ?? 0.5-3.5 cm, glabrous or mostly along lower midrib and margins retrorsely aculeolate, base acute, apex acute; lateral veins 3 or 4 pairs, pinnate.