Description: English: Cumberland sandgrass, Calamovilfa arcuata, growing at the Missouri Botanical Garden. According to the Garden's information sign, this rare species was discovered in 1970 and is a candidate for federal listing. It has an unusual disjunct distribution and has been found only in three counties of southeastern Oklahoma and at one site in Tennessee, where it grows in or along streams on gravel or sandbars. Date: 20 May 2008. Source: Own work. Author:
James Steakley.
