Liguleless leaf: Extreme expression of Lg4, showing distortion along midrib

liguleless leaf: Liguleless (lg1) mutant plant (left) has missing ligule and auricle, with upright leaves that envelop the culm

Liguleless Lg4 plants have no ligule or auricle but vestiges appear sporadically in blade. Photo showing erect display and fluted appearance of the lower leaves (photo courtesy J. Fowler).