Artificial intelligent assistant

stragule

ˈstragule Bot. rare.
  [a. F. stragule or ad. L. strāgulum covering.]
  The inner involucrum of the flowers of grasses.

1821 S. F. Gray Brit. Plants I. 122 Glumelle. Stragule, Corolla, Interior glume [etc.].. The internal particular involucrum of the flowers of the grasses.

Oxford English Dictionary

yu7NTAkq2jTfdvEzudIdQgChiKuccveC 28732cce9cc73b01337f462feb0f045c