bladeless
美
英 
例句
Upper leaves often bladeless, petioles wholly sheathing.
无叶片的上部叶片通常,完全具鞘的叶柄。
Upper leaves reduced to bladeless sheaths.
上部叶片退化到无叶片的鞘。
Leaves occasionally reduced to a bladeless or nearly bladeless sheath at base of stem (cataphyll);
叶有时无叶片或近无叶片,在茎基部有叶鞘(芽苞叶);