Lysinibacillus macroides is a Gram-positive, endospore-forming bacterium in the family Planococcaceae, characterized by relatively large rod-shaped cells among members of its genus. It is aerobic to facultatively anaerobic and is found in soils, water, and decaying organic matter. Like other Lysinibacillus species, it is distinguished from Bacillus by its Lys-Ala cell wall peptidoglycan structure.