Herb up to 63 cm high. Stem erect, striate, greenish, greyish-white-tomentose, with simple hairs and sessile to subsessile yellow glands. Leaves 40-110 x 2-17 mm, erect-patent, linear, flexuous, attenuate at base, sessile to subsessile; the margins serrulate, slightly callose; apex acute; discolour, upper surface greenish, glabrous to glabrescent, often with sessile yellow glands, lower surface densely greyish-white-tomentose, with simple hairs and sessile to subsessile glands. Capitula generally solitary, on erect-patent peduncles c. 6 mm long, with one or few subtending linear leaves; involucre 14-15 x 30-32 mm, broadly obconic, with c. 120 phyllaries arranged in 5-6(7) rows, acute, pungent, glabrous, straw-colored, with a purple stripe on either side of the midrib phyllary margins shortly serrulate principally towards the apical part, not scarious; outermost phyllaries 2-4 x 1.5-2.5 mm, deltate, patent, acute; middle phyllaries 3-11 x 1.5-2.5(-3) mm, deltate-lanceolate, erect-patent, acute; innermost phyllaries 12-14 x 2-2.5(-3) mm, longer than the outer phyllaries and projected ca. 1-2 mm beyond the pappus, narrowly deltate to oblong-lanceolate, erect, acute. Florets c. 25 per capitulum, actinomorphic, hermaphrodite. Corolla c. 9 x 3 mm, dull white, with subepidermal star-shaped calcium oxalate crystals, epidermal cell surface 'intestine-like' and with short glandular twin hairs; tube c. 4.5 x 0.5-1.5 mm; lobes c. 4 x 0.5 mm, becoming recurved, with slender submarginal veins and rarely with medial accessory veins. Stamens exserted for c. 2 mm beyond the corolla; filaments c. 2.3 mm long, with star-shaped calcium oxalate crystals; collar c. 0.3 mm long; anthers c. 5.5 mm long; apical appendages c. 1.5 mm long, apiculate; anther theca calcarate, endothecial cell wall polarized (i.e. with thickenings at the extremes), tails tapering, 1.5-1.7 mm long, with retrorse, acute hairs 0.2-0.5 mm long and some shorter Worse hairs at the apex. Style c. 9 mm long, with star-shaped calcium oxalate crystals, stylar branches 2.3 mm long. with sweeping hairs forming a subapical ring, covering a surface 0.5-0.7 mm long, the basal hairs longer than the rest. Achenes c. 2 x 1.5 mm, turbinate, 10-ribbed, hispid, with ascending 0.2-1.8 mm long hairs, inserted between the ribs from the base to the top of the achene, without conspicuous epidermal glands the ribsabundant superficial biseriate glands between the ribs, with star-shaped calcium oxalate crystals in the cypsela pericarp; immature testa (subepidermal calcium oxalate crystals are observed in the immature testa, they are subsequently hidden from view by the epidermis of the mature testa) with long-rectangular crystals oriented in the same direction (it was possible to observe the mature testa well but it is probably of Dicoma tomentosa type); pappus isomorphic, of c. 100 barbellate bristles arranged in 4-5(-6) series, the 12-15 bristles conspicuously broadened toward base, 0.5-0.6 mm wide, the longest bristles c. 8 mm long, the shortest c. 0.5 mm long; barbellae 0.1-0.2 mm l
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