Robert H. Mohlenbrock Related books Flowering plants, nightshades to mistletoe Southern Illinois Univ Pr • 1990 Macmillan Field Guide Wildflowers (Macmillan Field Guides) Simon & Schuster • 1987 Sedges: Carex (The Illustrated Flora of Illinois) Southern Illinois Univ Pr • 1999 The Illustrated Flora of Illinois Southern Illinois Univ Pr • 1999 Where Have All the Wildflowers Gone? Smithmark Pub • 1988