Herb with a slender taproot, probably often annual, occasional specimens woody, branches few to many from the crown, prostrate or decumbent, mostly 20-150 mm long, very slender, simple or sparingly branched, loosely woolly, glabrescent, often reddish, distantly leafy except at the crown and under the heads. Radical leaves up to 15 x 6 mm, stem leaves sometimes smaller, upper leaves mostly 3-8 x 1.5-3 mm, obovate, spathulate or oblong-spathulate, apex obtuse, often folded lengthwise and strongly recurved, base narrowed, half-clasping, margins somewhat undulate, both surfaces glandular, loosely grey-woolly. Heads homogamous or heterogamous, narrowly campanulate, ±3 x 2 mm, each opposite a leaf, solitary or few in small glomerules crowded towards the tips of the branchlets forming a leafy racemose compound inflorescence. Involucral bracts in 3-4 series, outermost short, webbed to surrounding leaves with wool, inner subequal, exceeding flowers, woolly on the backs, pellucid, sometimes red above the stereome, tips opaque, subacute to acuminate, mostly squarrose, straw-coloured to reddish. Receptacle nearly smooth. Flowers 8-23, 0-2(-3) female, 8-22 homogamous, yellow, sometimes tipped red. Achenes 0.75 mm long, glabrous or with myxogenic duplex hairs. Pappus bristles many, equalling corolla, tips barbellate, bases scarcely cohering by patent cilia.
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Like H. litorale but heads or glomerules crowded into more elongate, racemose, compound inflorescences and involucral bracts acuminate and hooked.
Like H. leontonyx but heads or glomerules crowded into more elongate, racemose, compound inflorescences, and florets 8-23.