harvester that heads and threshes and cleans grain while moving across the field

harvester that heads and threshes and cleans grain while moving across the field

harvester that heads and threshes and cleans grain while moving across the field

maple of eastern and central North America having three-lobed to five-lobed leaves and hard close-grained wood much used for cabinet work especially the curly-grained form; sap is chief source of maple syrup and maple sugar; many subspecies