Tufted perennial up to 30cm or more tall. Leaves linear to narrowly lanceolate, usually entire. Floral bracts oblong to obovate, green or tipped yellow, purple or red. Flowers 1.5-2.5cm long, mid to late summer. North-eastern North America westwards to South Dakota and Utah, in rocky or gravelly, often peaty soils in the mountains to subalpine levels.