Flora of North America species comparison

erect, usually reddish, sometimes stramineous, glabrous.

erect, stramineous, villosulous, stipitate-glandular.

blades spatulate or oblanceolate to oblong or lanceolate, 15–70 mm, lengths 3–5(–7) times widths, bases ± cuneate or clasping, margins usually dentate or serrate (teeth apiculate), sometimes entire, apices rounded or obtuse to acute, faces glabrous (or, near margins, scabridulous) and sparsely to densely gland-dotted.

blades spatulate or oblong to lanceolate, (12–)35–60(–80) mm, lengths mostly 3–6 times widths, margins ± crenate (teeth 5–10 per cm, blunt, resin-tipped), apices obtuse to acute, faces usually hirtellous and glandular (glands usually stipitate, sometimes sessile, seldom in pits), sometimes glabrate.

broadly urceolate to globose, 8–11 × 10–20 mm.

± globose, (6–)8–12 × (6–)12–18 mm (usually subtended by leaflike bracts).

18–27;

laminae 10–15 mm.

13–27, laminae 5–12 mm.

in 5–6 series, linear or lanceolate to oblong-lanceolate, apices looped to hooked (outer) or recurved to nearly straight, terete to subulate or acuminate, slightly to moderately resinous.

in 4–6 series, spreading to appressed, linear to lanceolate, apices recurved to ± straight, subulate to acuminate, slightly resinous.

usually in open, corymbiform to paniculiform arrays, seldom borne singly.

in open, corymbiform arrays or borne singly.

whitish or stramineous, 2.5–5 mm, apices smooth or weakly coronate, faces smooth or finely furrowed;

pappi of 4–8 straight, barbellate to barbellulate bristles or setiform awns 2.5–5.5 mm, shorter than disc corollas.

stramineous to brownish, 2.5–4 mm, apices ± coronate, faces rugose (transversely fissured);

pappi of 2–3 straight, smooth or (distally) barbellulate (apices usually dilated), setiform awns 4.5–5.5 mm, equaling or surpassing disc corollas.

= 12.

= 12.