Short-lived perennial herb; stems up to ± 5 dm. long, erect, sulcate, us. much-branched from hard woody stock; branches clad in dense white cobwebby tomentum, thinning with age. Lower and mid lvs subsessile, ± 5-10 cm. × 2-5 mm., linear to narrow-lanceolate, strongly recurved, often almost to midrib, acute to subacuminate, clad in cobwebby white hairs on both surfaces, becoming ± glab. above with age, obscurely and remotely denticulate. Upper lvs similar, us. with small auricles at base, merging into linear bracts of infl. Infl. a lax corymbose panicle with ∞ capitula up to 10 mm. long, 7 mm. diam. on slender hairy pedicels; calyculus of a few bracteoles c. 2 mm. long. Phyll. 10-14, ± 6·5-8 mm. long, narrowed from base to acute apex, margins ciliolate, scarious. Florets ± 20-30; ♀ filiform, 5·5-6 mm. long, (3)-4-toothed; perfect slender-funnelform, teeth 4-5, slightly thickened at tips. Achenes narrow-cylindric, very slightly curved, narrowed abruptly to apex, scabridulous on flattish ribs, c. 2.5-3-(4) mm. long. Pappus-hairs fine, white, 5-6 mm. long.

2n = 40

Erect annual to short-lived perennial herb. Mid cauline lvs sparsely to densely white-lanate and usually green-grey on upper surface, moderately to densely white-lanate on lower surface, apetiolate, linear, entire or sometimes remotely denticulate, revolute, not amplexicaul, without lobes or with 1 narrow lobe at base, (25)-40-120-(180) × 1.5-6-(12) mm. Uppermost lvs smaller, entire. Supplementary bracts 3-5-(6), 1-1.5 mm long. Involucral bracts (8)-12-13, glabrous or sparsely lanate toward base, (5.5)-6-9 mm long. Ray florets 0. Disc yellow, c. 2 mm diam. Achenes subcylindric, narrowed to and constricted below apex, usually with 2-3 rows of hairs in narrow grooves between broad ribs, rarely almost glabrous, (2.2)-2.5-3.5 mm long.