Sedges and Grasses
Posted in Gardening Tips on November 22 2011, by Sonia Uyterhoeven
A few weeks ago, I was displaying some grasses and sedges for a home gardening demonstration when a woman asked me what the difference is between the two. Naturally, there are anatomical and sometimes cultural differences (always generalizations) between these similar plants, however, they are often categorized together and thought of as the same. To help clarify the differences, we will begin with a useful mnemonic:
Sedges have edges,
Rushes are round,
Grasses have nodes from the top to the ground.
Grasses and bamboos are in the Graminaceae family, sedges are in the Cyperaceae family, and rushes are in the Juncaceae family. When you look at a grass or sedge, what you see are the stems, leaves, and flowers. And in the case of this explanation, the stems are referred to as culms.