Definition of lisianthus
plural lisianthuses
or Lisianthuses
: a tall, annual or biennial plant (Eustoma exaltatum russellianum synonym E. grandiflorum synonym E. russellianum) of the central and southern U.S. and Mexico that is related to the gentians, has usually pastel-colored, showy, roselike single or double flowers, and includes various cultivars grown in gardens and greenhouses for cut flowers
- A rose by any other name would be called lisianthus. The pretty, delicate annual, with a ruffled bloom often likened to the rose, is emerging as the trendy gardener's must-have flower.
- —Shawn Sell, USA Today, 27 June 2003
