Spanish dagger

noun
  1. a stemless or short-trunked plant, Yucca gloriosa, of the agave family, native to the southeastern U.S., having leaves nearly 2½ feet (75 cm) long, with a stiff, sharp point, and greenish-white or reddish flowers nearly 4 inches (10 cm) wide.

Origin of Spanish dagger

An Americanism dating back to 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018