Tufted herb producing offset plants from short rhizomes; lf-sheaths closely compacted, forming a pseudo-stem c. 15 cm. long. Lamina glab. or very nearly so on both surfaces, pliant, almost membr., (15)-30-50 × 5-10-(15) cm., lanceolate to narrow-lanceolate, rather bluish green above, paler and ± keeled below. Apex long-acuminate; margins entire, somewhat thickened, tapering to rather broad grooved petiole c. 15 cm. long, us. with a few hairs, then widening to sheath c. 15 cm. long. Scape ± 30-60 cm. long, stout, glab. or very nearly so, ± fistular. Bracts amplexicaul, loosely sheathing, sublanceolate, acuminate, very sparsely hairy; lower laminae up to c. 4 cm. long, upper sts forming pseudo-involucre. Capitula 4-5 cm. diam.; phyll. ∞, ovate-lanceolate, acute to acuminate, ± sphacelate. Ray-florets white, sts pink-flushed; tube narrow, thickened below, limb. us. distinctly 3-nerved and-toothed. Disk-florets ∞, tubular, somewhat thickened at base, teeth ovate-triangular. Achenes narrow-cylindric, glab., ± strongly ribbed or striate. Pappus-hairs ∞, white, barbellate, < disk-florets.
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