Flora of North America species comparison

erect, usually reddish, sometimes stramineous, glabrous.

erect, stramineous to purple, proximally sparsely hirtellous to glabrate, distally ± hirtellous to villosulous.

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 ovate or ± triangular to oblong or obovate, 15–60(–90) mm, lengths 1.5–3(–4+) times widths, bases ± clasping, margins ± crenate (teeth 8–14 per cm, blunt, resin-tipped), apices obtuse to acute, faces usually hirtellous to scabridulous and glandular (glands usually in pits, sometimes sessile, seldom stipitate), sometimes glabrate.

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

± urceolate to hemispheric, 8–12 × 10–20 mm (usually subtended by leaflike bracts).

18–27;

laminae 10–15 mm.

20–27;

laminae 8–12 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, lanceolate to linear, apices subulate, hooked to ± recurved or nearly straight, moderately resinous.

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

in open, corymbiform to paniculiform 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 or brownish, 3–4.5 mm, apices ± coronate to knobby, faces (outer) rugose (not transversely fissured; angles ± ribbed) or (inner) striate;

pappi of 2 straight or weakly contorted, smooth (apices dilated), bristles or setiform awns 5–6 mm, equaling or surpassing disc corollas.

= 12.

= 12.