Flora of North America species comparison

1(–5), erect, simple, glabrous or moderately to densely hispido-villous, sometimes hairs appressed.

1–10+, erect, stout, hairy.

basal and proximal cauline tapering to winged petioles, blades broadly oblanceolate to obovate or elliptic, 35–200 (including petioles) × 15–60 mm, margins serrate or crenate, apices acute, faces sparsely to densely hispido-villous, rarely glabrous;

mid and distal cauline sessile, blades elliptic, 15–30 × 5–7 mm, rapidly reduced distally, margins entire.

basal and proximal cauline usually present at flowering, abruptly narrowed to long petioles, blades ovate to rhombic, 80–200 × 24–50 mm, firm, flat, margins entire to crenate, sometimes undulate, apices obtuse to acute, faces densely hairy;

mid to distal cauline sessile, blades ovate, 30–50 × 15–17 mm, stiff, greatly reduced distally, margins entire or finely serrate, sometimes undulate, apices acute to obtuse.

1.5–2.5 mm, hispido-villous to canescent.

3–15 mm, strigillose-canescent, bracteoles 1–3, linear-lanceolate.

campanulate, 4–6 mm.

campanulate, 6–8 mm.

6–14;

laminae 1.5–4.5 × 0.5–1 mm.

6–13;

laminae 1.4–5.4 × 1.2–1.9 mm.

6–12;

corollas 3–4.5 mm, lobes 0.6–1.2 mm.

14–35;

corollas 4.3–6.1 mm, lobes 0.6–1.1 mm.

in 3–4 series, appressed, strongly unequal, midribs and tips conspicuously green, margins white, scarious, apices obtuse, glabrous or moderately strigose.

in 3–4 series, unequal, oblong, conspicuously striate (3–5 pronounced nerves), obtuse.

8–250+ in usually wand-paniculiform arrays of short axillary and terminal racemiform, non-secund clusters, sometimes proximal branches elongated, ascending and bearing short axillary and terminal racemiform clusters.

9–190, in corymbiform arrays, compact or branches long and spreading, densely hairy throughout.

(narrowly obconic) 1–2.5 mm, glabrous;

pappi 2.5–4 mm (sometimes distinctly clavate).

(obconic) 0.8–1.7 mm (ribbed), glabrous or strigillose apically;

pappi 3–4 mm.

= 18.