The Ohio State University: College of Food, Agricultural, and Environmental Sciences


Plants are divided into two broad categories: monocots and dicots.

Monocotyledons (monocots, grasses, sedges, etc.)

  • Embryo has one cotyledon
  • Leaves are usually parallel-veined and narrow, and are usually without a petiole
  • Flower parts are in threes or multiples of three

Identification of grasses and other monocots is based on the variability in the morphological characteristics of the blade, ligule, auricles, collar, and sheath.