Similar to C. laxum subsp. laxum, but differing by the scabridity of the corymbophore, cauline leaves and bracts. Roots wiry. Leaves glabrous; blades narrowly linear to falcate, sometimes canaliculate, (80-)12()(-170) mm long, 1.5-2 mm broad, apex acute, base dilated, clasping with submembranous margins, silky hairs prominent, margins involute, veins not prominent; texture coriaceous becoming rugulose; cauline leaves scabrid, 5-65 mm long, 1-2 mm broad, clasping or half-clasping, diminising in size upwards. Corymbophore round to angular in cross section, scabrid, glandularly muricated, (150-)190(-255) mm long, 1.5-2 mm in diameter, branching from corymbophore dichotomously. Heads distinctly pedunculate or with a very short penduncle ca. 1 mm or sessile, arranged in a panicle. Involucral bracts scabrid, glandularly muricate, 2-3 smaller bracts subtending 2 upper bracts; upper bracts (6.5-)9.5(-12) mm, apex trifid or fimbriate, purple or greenish purple. Flowers mauve, pedicel present. Petals oblong elliptic (4.8-)6.8(8.3) mm long, ca. 2 mm broad; corolla tube 3-5 mm long. Anthers ca. 4.2 mm including base. Ovary hirsute, style branches long obtuse. Cypsela ca. 5 mm long 1.5 mm broad, linear to elliptic. Pappus coroniform at base, fibriate, bristles many 1 mm long.
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Tufted perennial to 25 cm with scabrid stems. Leaves filiform with involute margins, smooth, silky at base. Flower heads drooping, in lax panicles, mauve or white, bracts scabrid.