1. Corn having kernels with a hard outer layer enclosing the soft endosperm
   - flint corn, Yankee corn, Zea mays indurata

Type of: field corn

• Robert Ranke Graves
• Robert Redford
• Robert Robinson
• Robert Schumann
• Robert Scott
• Robert Southey
• Robert the Bruce
• Robert Traill Spence Lowell Jr.
• Robert Treat Paine
• Robert Tyre Jones
• Robert Van de Graaff
• Robert Venturi
• Robert Walpole
• Robert Wilhelm Bunsen
• Robert William Service
• Robert Woodrow Wilson
• Robert Woodward
• genus Phyllodoce
• genus Phylloporus
• genus Phyllorhynchus
• genus Phylloscopus
• genus Phyllostachys
• genus Phyllostomus
• genus Phylloxera
• genus Physa