1.petiole erect, equitant, forming a pseudo stem, proximally enveloped by several cylindric, membranous sheaths.
叶柄直立，套折，形成假茎，下部被数个圆筒状，膜质鞘包围。
2.Leaves basal, tufted, usually slightly distichous equitant, sessile, base dilated.
叶基生，有点通常，丛生，无梗，基部膨大。
3.Leaves scale-like, distichous, equitant, sometimes linear or partly linear.
叶鳞片状，2列，套折，有时线形的或部分线形。
4.Leaves basal or nearly so, 2-ranked, basally equitant, sword-shaped, laterally flattened.
成列的叶基生或近如此，2，套折，剑形，侧面扁平。
5.Leaves basal or on short stem, usually distichous equitant, sometimes spaced, basally distinctly petiolate or not;
叶基生的或在短茎，通常套折，有时隔开，明显有叶柄与否；