Related Clues:

• Source of ergot poisoning
• Ham sandwicher, perhaps
• Reuben layer
• Pumpernickel alternative
• Bread choice
• Catcher's field, in fiction
• Sandwich bread
• Whiskey-making grain
• Type of bread or grass
• Deli slice
• Grain in a Salinger title
• Card-table call
• Place for a catcher
• Brown bread
• Reuben's base