Ligule


The ligule is found at the inner base of the leaf between where the leaf attaches to the main stem and the stem itself. It may take several forms but is commonly some form of translucent membrane or a fring of hairs. The membranous ligule can be very short 1-2mm (Kentucky Bluegrass Poa pratensis) to very long 1-2cm (Johnsongrass Sorghum halepense), it can also be smooth on the edge or very ragged. Some grasses do not have a ligule like barnyardgrass (Echinochloa crusgali.)


Designed by Dr. Gene R. Taylor II