Herbs, perennial. Stem solitary, erect, to 150 cm tall, fistulose, sparsely puberulent, glabrescent, not branched below, much branched into synflorescence in upper part. Basal and lower stem leaves petiolate; blade abaxially pale green, adaxially dark green, oblong-lanceolate, 10-15 × 5-6 cm, abaxially sparsely minutely pilose on veins, adaxially sparsely puberulent, pinnatipartite into small, linear-lanceolate, acuminate, entire or obscurely denticulate terminal lobe and 20-26 opposite or subopposite, narrowly oblong or oblong-lanceolate, 2-3 × 0.5-0.8 cm, spreading, acute, acutely few serrulate lateral lobes; upper leaves similar but smaller. Capitula radiate, very numerous, arranged in terminal and upper axillary compound corymbs; peduncles 5-12 mm, slender, puberulent; bracteoles 1 or 2, filiform, 1-2 mm, puberulent. Involucres cylindric, 6-7 × 2.5-3 mm, calyculate; bracts of calyculus 5 or 6, filiform; phyllaries 8 or 9, linear, 6-7 × ca. 0.8 mm, subleathery, glabrous, margin narrowly scarious, apically obtuse and puberulent. Ray florets 5; corolla tube ca. 4 mm; lamina orange-yellow, oblong, ca. 7 × 1-1.2 mm, 4-veined, 3-denticulate. Disk florets 10; corolla orange-yellow, ca. 8.5 mm, with ca. 3.5 mm tube and funnelform limb; lobes oblong-lanceolate, ca. 1 mm, apically acute, papillose. Anthers ca. 2.7 mm, basally shortly obtuse-auriculate, appendages ovate-lanceolate; antheropodium rather elongated, basally slightly expanded. Style branches ca. 1.5 mm. Achenes cylindric, ca. 2.5 mm, glabrous. Pappus white, ca. 7 mm. Fl. Sep-Nov.
Home