Bot. [f. Gr. κάλυκ- CALYX + στέγη covering, in reference to the generic distinction.] A genus of plants separated by modern botanists from Convolvulus, because of the two large bracts which enclose the calyx; it contains the large White Convolvulus or Bindweed of the English hedges.
1880. New Virginians, I. 85. A tangle, or wilderness of dew-berries, white calystegias.
