Heteromera fuscata (Desf.) Pomel / Homotypic Synonyms: Tripleurospermum fuscatum (Desf.) Sch.Bip, it is an annual herb, many stemmed, 10-25 cm long, pubescent villous or glabrescent. Stems monocephalic, erect or diffuse, simple, striated, leafy almost up to the middle; hairs whitish, spreading, flexuous, usually dense below the capitula on the peduncles. Leaves pinnatisect, broadly spathulate in outline, with 1or 2 lateral pairs of lobes or lateral pairs absent; terminal lobe largest, deeply 3-sect; lobes linear, mucronate; lower undivided part of the leaf linear, petioliform, sessile, Capitula solitary on up to 10 cm long peduncles, 1,5-2 (-2.5) cm in diam, (include. ray florets). Involucral bracts imbricate, herbaceous-coriaceous with broad, scarious margins and apices. Outer involucral bracts 4-5.5 (-6) x 2-2.5 mm, (include, searious margin and apex), ovate to ovate-oblong, villous at the back with 1-1.25 mm wide, scarinus, dark brown margin and apex; median nerve dark coloured, conspicuous and somewhat craniate on the inner surface. Inner involucral bracts larger than the outer ones, with broader and nearly rounded carious apex. Marginal florets ligulate, female; ligules white, 12-17 x 5-6 mm, (include, basal tube), oblong to oblong-lanceolate, unequally 3-toothed; basal tube 1.5-2 (-2.5) mm, compressed, weakly winged; pappus of the ovary auriculiform, adaxial lobe longest, entire, equal to the basal tube. Disc florets tubular, hermaphrodite; corolla 2.25 – 3 mm, dialated at the base and from the middle above abruptly widened into a 5-lobed, campanulate limb; lobes triangular, reflexed, glandular-appellate, yellow; pappus of the ovary coroniform, c. half as long as the ovary, palcaceous; scales 5, distinct up to the base, ± spathulate in outline.
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