Identifying Broadleaf Weeds
Monocot Weeds List
Dicot Weeds List
University of Kentucky
Helpful Hints To Identifying Grasses
Most plants having narrow leaves with parallel veins are called grasses. Seedling grasses are
generally more difficult to identify than seedling broadleaf weeds. As grasses grow they usually
develop features that help distinguish them from one another.
Parts of a Grass Plant
The leaf of a grass plant is composed of three basic parts:
blade is the flattened portion of the leaf.
- The collar is the junction between the blade and the
- The sheath is the portion of the leaf surrounding the stem.
Other parts of the leaf are:
- The ligule is a membrane-like structure attached to the collar on the inside of the leaf.
- The auricles are claw-like appendages attached to the collar and surrounding the stem.
Key factors in identifying many
grasses are the presence or absence of ligules and auricles and their size and shape.
Identification of grasses is also aided by the presence of hairs (called pubescence) on various
plant parts. Length, density and location of these hairs will vary for different grasses. The
absence of hairs (called glabrous) on parts of the plant can also serve as a key in identification of