Chickweed grows 8–12 inches high and is found in moist, low ground in prairies and open woods. Leaves are opposite, and the stems are enlarged at the joints. The flowers are white, about 1 inch across, and have 5 deeply notched broad petals. The center of the flower is greenish with greenish streakings on the petals. The anthers are yellow.
The name comes from the Latin word arena meaning sand or sandy place.
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.