Blotched with yellow or white, variegated; hence bloached-leaved adj.
ΘΚΠ
the world > matter > colour > variegation > patch of colour > [adjective]
patchy1583
bloached1725
mealy1804
splotchy1863
splodgy1882
sploshy1942
1725 R. BradleyChomel's Dictionaire Œconomique at Phyllyrea The plain Phyllyrea, and the bloach'd leav'd one, are very quick Growers.
1766 T. H. Croker et al. Compl. Dict. Arts & Sci. III. at Variegation Those leaves whose middles are variegated with yellow or white, in spots, are called bloached.