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Annual herb 0.3-1.2 m tall, sometimes woody at base; stems pilose with long slender hairs and short glandular hairs. Leaves aromatic, (narrowly) obovate and often lobed, sessile or with a winged petiole, 2-5 cm long, 0.8-3 cm wide (occasionally basal leaves to 16 cm long and 7 cm wide, rarely also large leaves at branch bases), base auriculate with small, narrowly ovate auricles, sometimes decurrent in two lines of lobes similar to the auricles, margins irregularly serrate and often blade pinnatifid proximally, apex acute, pilose and glandular on both surfaces. Capitula 6-9 mm long, in lax leafy corymbs of several to many heads; stalks of individual capitula 2-20 mm long; phyllaries subequal, the outermost smallest, 2-8 mm long, 0.5-1.2 mm wide, margins scarious and ciliate, acute, pubescent and glandular. Outer florets white to pinkish, 180-280, tube filiform, 3.7-4.2 mm long, minutely toothed; style 4.3-4.6 mm long with glabrous branches; inner florets pinkish purple, 6-12, tube 4-5 mm long, widening only slightly, lobes 0.3-0.5 mm long, glandular; anthers 1.5-1.8 mm long, with very short tails and short ovate distal appendages; style 4.5-5.2 mm long with short papillose branches. Achenes cylindrical, 0.7-1 mm long, pubescent; pappus of white barbellate bristles 4-5 mm long.
Herbs, to 1 m tall, erect, sometimes branched at base, usually branched on upper part of stem; culms cylindric, villous and glandular. Leaves alternate, sessile, oblanceolate-ovate to obovate, 1-8 cm, both surfaces villous, parted or not, base cuneate to attenuate, margin serrate to doubly serrate, apex rounded to acute. Capitula terminal and axillary, 8-9 × 4-6 mm, in lax corymbs or cymose panicles, branches leafy. Involucre 4-seriate, margin entire or pilose, apex acuminate; outer phyllaries lanceolate, 2.5-5 mm, abaxially villous and glandular, adaxially glabrous to sparsely villous, innermost linear, central part glabrous to sparsely villous, margin membranous, 1-veined, ca. 8 mm. Receptacle concave, glabrous. Marginal disk florets numerous, female and fertile; corolla whitish to pale purplish, filiform, 3.5-4.5 mm; stigma exposed, 0.5-1 mm. Central disk florets fewer than 10 per capitulum, bisexual and fertile; corolla whitish to pale purplish, tubular, ca. 4.5 mm, 5-lobed, lobes ca. 0.5 mm; anthers obtuse at apex, shortly tailed at base; style sparsely pilose, stigma bifid, extracted. Achenes cylindric, 10-ribbed, sparsely pilose; carpopodium a broad circle, conspicuous. Pappus white, 4-5 mm. Fl. Jan-Apr.
Herb, up to 0.6 m high. Stems interruptedly winged. Leaves coarsely serrate, sometimes pinnatifid. Inflorescence a lax terminal panicle. Peduncles slender, straight with heads held erect. Flowers pinkish purple.
