piebald Small plant with striking pattern of diurnal crossbands of chlorotic tissue in midvein which becomes necrotic and turns white leading to leaf senescence.
MaizeGDB reference

piebald Immature pb*-N1386C mutant plant, showing broad bleached white diurnal patches and crossbands, especially on lower leaves

piebald Close up of two leaves of the original pb*-N2649 mutant plant showing irregular diurnal patches of white necrotic midvein tissue.

Piebald 8th leaf of Pb*-N2583/+ heterozygous mutant plant showing a broad diurnal bleached patch of pale green tissue.

piebald Original pb*-N2649 mutant plant showing striking patches of tissue with white midvein tissue distributed in a motified diurnal pattern.