Plants erect, to 6 dm. Leaves to 3 cm × 3 mm × 2 mm. Flowers: sepals green, often pinkish to reddish, ovate to elliptic-ovate, 6-8 mm; petals pale pink to purple, oval to obovate, 8-10 mm. Capsules ovoid-conic, 9-18 mm. Seeds brown, 2 mm.
'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.