Flora of North America species comparison

1–3+, ascending, proximally purplish, glabrous or glabrate.

fewer than 10, horizontal to patent (green);

petioles slender or decurrent lines from bases;

blades oblanceolate or narrowly oblong (usually runcinate), (1.5–)2.2–11.6 × 0.4–2.2 cm, bases attenuate, margins usually lobed regularly, ± deeply, in 3–5(–6) pairs, occasionally (younger) only toothed or denticulate, lobes usually retrorse, occasionally straight or antrorse, triangular to narrowly triangular, terminals often largest, acuminate to acute-rounded, sometimes toothed, teeth 0(–1) on lobes or sinuses, triangular, apices obtuse to acute, faces glabrous.

dark green, often glaucous, often purplish, particularly adaxially, cylindro- to narrowly campanulate, 9–14 mm.

30–55+;

corollas yellow (gray-striped abaxially, sometimes becoming orange purplish with age on drying), outer 11–14 × 1.5–2.4 mm.

7–8 in 3 series, lanceolate, 1.4–2.6(–4) mm wide, margins not scarious (some outer) to narrowly scarious, apices long-acuminate, tips purplish or grayish, often flared, scarious, hornless.

of 7–9, spreading, becoming reflexed to revolute, often purplish, particularly adaxially, ovate to lance-ovate or elliptic bracklets in 2 series, 2.5–4.5 × 1.7–2.7 mm, margins not or narrowly scarious, hyaline, apices acuminate to caudate, tips sometimes flaring, scarious, erose, hornless.

maroon to brown or reddish brown, sometimes grayish, bodies oblanceoloid (sometimes narrowly), 3–3.8 mm, cones conic, 0.8–1 mm, beaks stout, 3–6 mm, ribs 15 narrow (6 prominent), faces proximally ± tuberculate, ± muricate in distal 1/3–1/2 (or less);

pappi white to yellowish, 4–6.5 mm.

= 24, 32 (as T. kamtschaticum).