Glab. perennial herb up to c. 3 dm. tall; taproot rather fleshy, up to c. 5 mm. diam., whitish, deeply descending; stock stout, us. multicipital, emitting ∞ ascending branches 2-3 mm. diam. (lower parts often buried in debris, whitish; aerial parts us. purplish). Lvs ∞, close-set, subsessile. Lamina coriac., linear, erect to patent, finally reflexed; margins often white, ± recurved, entire to obscurely toothed, midrib prominent below; 2-5 cm. × 2-3·5 mm.; apex obtuse to apiculate (rarely retuse). Peduncle simple or with several branches, up to ± 15 cm. long, bracted; bracts linear, 15-4 mm. long. Fls 2-3 cm. diam. Calyx-lobes ± 5 mm. long, linear to narrowly ovate, acute. Corolla-tube ± 8 mm. long; lobes ± 10 mm. long, narrow-ovate, ± apiculate, pale lilac to whitish. Style = corolla-tube; stigma white, 2-3-lobed. Capsule obconic, ± (6)-8-11-(12) mm. long.
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