Flora of North America species comparison

1–5, sparsely to moderately strigoso-puberulent.

1–15+, decumbent to erect, proximally glabrous, sparsely strigose in array.

basal petioles 3–5 cm, blades oblanceolate or spatulate to ovate or rotund, 2–4 cm (excluding petioles);

cauline (numerous) subsessile or sessile, blades elliptic or lance-elliptic to ovate, mid mostly 25–50(–65) × 10–25 mm, distal much reduced;

branch leaf petioles 1 mm, blades ovate, 5–15 (excluding petioles) × 2–10 mm.

basal petiolate to sessile;

blades spatulate, 40–120 × 10–30 mm, subcoriaceous, margins crenate, apices acute to obtuse, glabrous;

many-leaved rosettes present at flowering;

cauline 9–19, sessile;

blades similar to basal proximally, becoming oblanceolate distally, reduced to 10 mm, margins entire, apices acute, often heavily resinous.

linear, 1–3 mm, bracteate.

3–10 mm (longest), sparsely strigose;

bracts clustered near base of heads.

narrowly campanulate, 3–5 mm.

campanulate, 4–7 mm.

0(–2).

4–10;

laminae 2–4 × 1–2 mm.

4–8;

corollas 3 mm, lobes 1 mm.

10–18;

corollas 4.3–6 mm, lobes 0.7–1.5 mm.

in 3–4 series, lanceolate, strongly unequal, margins ciliate, apices acute, glabrous.

(15–24 in 3–4 series) unequal, very resinous;

outer ovate, obtuse, inner linear-lanceolate, obtuse or acute.

75–200 in open paniculiform arrays, branches divaricate, ascending to recurved, weakly to strongly secund, to 50 cm, secondary branches less than 3 cm.

5–100+, not secund, in paniculiform arrays, or virgate to thyrsiform in robust plants, consisting of axillary and terminal racemiform clusters.

2.5–3 mm, moderately short-strigose;

pappi 2 mm.

appressed-strigose;

pappi 3.5–5.5 mm.

= 18.

= 18.