Lā'dy's-trā'çes or Lā'dies-trĕss'es, n.

n. (Bot.) A little herbaceous plant of several species of the genus Spiranthes. It has an erect spike about which the white flowers are arranged in a spiral, somewhat resembling a tress of hair, as they bloom. The species S. æstivalis is common in meadows through the United States. Gray.