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Perennial herb with a few basal leaves and leafy annual stems, 40–85 cm high, from a small vertical woody rootstock; stems solitary, sparsely hispid with spreading and ascending hairs.. Leaves subsessile, oblanceolate or broadly so, 6.5–15(–26) cm long, 2–5(–7) cm wide, cuneate to attenuate into a petioloid base, the very base clasping and ± sheathing the stem, crenate-serrate or serrulate, acute, sparsely scabridulous.. Glomerules 1–2 cm in diameter, numerous in lax thysoid compound cymes; inflorescence branches slender, ascending, bearing elliptic reduced leaves at the nodes; outer bracts of glomerules 2–5, broadly ovate to lanceolate, acuminate, 0.7–1.2 cm long; involucre to 10 mm long; phyllaries 8, lanceolate, acute, 6.5–9.5 mm long.. Corolla white, 5–6 mm long, glabrous.. Achenes 3–4 mm long, 10-ribbed, finely ascending-pubescent; pappus of 5–6 setae expanded at the very base, 4–5 mm long.
Erect herb, (30–) 50–150 cm high, branched above middle, with soft hairs. Leaves cauline, alternate, ovate, lanceolate or oblanceolate, (5–) 6–20 (–25) cm long, (3–) 4–10 cm wide, basally attenuate and semiamplexicaul, shallowly to sharply toothed on margins, acute to ±obtuse, softly hairy adaxially, gland-dotted and resinous abaxially. Capitular glomerules 1.5–2 cm diam., each subtended by 3 leaf-like bracts; bracts broadly ovate, subcordate, 8–10 mm long, 6–8 mm wide, acute to acuminate, green, pilose. Involucre 8–10 mm long; bracts 8; outer 4 lanceolate, 6.5–9.5 mm long, sparsely hairy, basally membranous-margined, acuminate; inner 4 elliptic-oblong, 7–8 mm long. Florets white; corolla 4.5–6 mm long, glabrous. Achenes narrowly turbinate to cylindrical, c. 3 mm long, densely hirsute, brown to greyish black. Pappus bristles 5, 3–4 mm long, membranous.
Leaves usually subsessile, mostly 7–15(26) x 2–5(7) cm., obovate-oblanceolate to oblong-oblanceolate, narrowly cuneate or sometimes the midrib narrowly winged and petiole-like, ± stem-clasping and ± stem-sheathing at the base, margins ± crenulate with callose-tipped teeth, scabridulous with scattered bristle-like hairs on both surfaces, the hairs usually most numerous on the prominent midrib and venation beneath, lamina somewhat chartaceous sometimes bullate in older leaves, minutely glandular beneath; upper cauline leaves grading into foliaceous bracts, bracts not conduplicate.
An erect herb. It keeps growing from year to year. It grows 15-60 cm high. It has rough hairs. The stems come from the lower portion of the stumps. They are 4-8 cm across and have lines along them. The leaves are usually on the stems and are broadly sword shaped. They are 5-20 cm long by 3-6 cm wide. They form narrow wings on the leaf stalk and clasp the stems. There are teeth along the edge. The flowers are white and tube shaped. They are in flower heads with bracts under them.
Involucres to c. 10 x 2–3 mm., narrowly ovoid-cylindric; phyllaries few-seriate, ovate to oblong-lanceolate, chartaceous to ± cartilaginous with pungent apices, margins membranous, sparsely hispid in the upper part or glabrescent, the inner 4 phyllaries 7–9 mm. long and nearly twice as long as the outer.
Capitula sessile, crowded in glomerules 1–2 cm. in diam.; glomerules terminal on few-many short synflorescence branches, or sometimes several glomerules ± scorpioidly arranged along a branch, glomerule-subtending bracts 2–4, ovate, leaf-like, ± equalling the glomerules in length.
Stems mostly solitary, shortly branched above, striate, leafy throughout but with leaves usually more crowded below, sparsely to densely hispid with patent hairs 1–2 mm. long, ± strigose on upper stem and branches.
Achenes 3–4 mm. long, narrowly turbinate-cylindric, c. 10-ribbed, setulose; pappus elements usually 5, c. 4 mm. long, very shortly scale-like at the base and abruptly tapered into a long barbellate apical seta.
Corollas white, 5–6 mm. long, consisting of a slender tube and a short campanulate deeply-lobed limb, more deeply cleft on one side, glabrous.
An erect branched coarsely hairy perennial herb with wrinkled leaves; usually 2-4 ft. high, but exceptionally up to 8 ft.
An erect hirsute perennial herb to c. 40 cm. tall, with annual stems from a small vertical woody rootstock.
Florets small, white, in bracteate heads up to 3/4 in. across
Florets c. 4 per capitulum.
