The fragrant, solitary, white flower of this showy, bulbous perennial, is six-petaled and terminal on a leafless, usually 12 in. stem. Opening in the evening, it lasts 2-4 days before turning pink and withering. Smooth, gray-green, grass-like leaves elongate after the flower has faded. Cooperia drummondii is quite similar to C. pedunculata, but slightly smaller in every respect.The species name of this plant is named for Thomas Drummond, (ca. 1790-1835), naturalist, born in Scotland, around 1790. In 1830 he made a trip to America to collect specimens from the western and southern United States. In March, 1833, he arrived at Velasco, Texas to begin his collecting work in that area. He spent twenty-one months working the area between Galveston Island and the Edwards Plateau, especially along the Brazos, Colorado, and Guadalupe rivers. His collections were the first made in Texas that were extensively distributed among the museums and scientific institutions of the world. He collected 750 species of plants and 150 specimens of birds. Drummond had hoped to make a complete botanical survey of Texas, but he died in Havana, Cuba, in 1835, while making a collecting tour of that island.