A large order yielding the cereals (wheat, rye, etc.) and sugar cane, the source of most of the sugar of the market. The characteristics of the order are the hollow stems (culms), flowers in spikelets, and the fruit, a caryopsis.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.