monocotyledones: comprising seed plants that produce an embryo with a single cotyledon and parallel-veined leaves: includes grasses and lilies and palms and orchids; divided into four subclasses or superorders: Alismatidae; Arecidae; Commelinidae; and Liliidae
class: (biology) a taxonomic group containing one or more orders
energy: an imaginative lively style (especially style of writing)