Flora of North America species comparison

bluish green (heavily glaucous), blades lanceolate to elliptic (not lobed), leathery, bases attenuate, margins entire or remotely serrulate, apices acute, faces glabrous;

basal petiolate, 20–50 × 4–10 cm;

cauline petiolate or sessile, 10–25 × 2–8 cm.

greenish blue (± glaucous), blades elliptic to ovate, usually pinnatifid to pinnately lobed (lobes mostly opposite, ovate to elliptic), ± leathery, bases attenuate to cuneate, ultimate margins entire or coarsely dentate, apices acute, faces usually glabrous, sometimes sparsely hairy (at least abaxially on veins);

basal petiolate, 17–60 × 10–25 cm;

cauline petiolate or sessile, 8–30 × 5–20 cm (blades among heads not lobed).

conic to columnar;

paleae 4–6.5 mm, apices acute, often attenuate, abaxial tips hairy.

ovoid to conic;

paleae (proximally transparent to light brown, distally greenish) 5–8 mm, apices acute to ± rounded, abaxial tips hairy.

7–15;

laminae elliptic to oblong, 25–40 × 8–14 mm, abaxially hairy.

0.

250–400+;

corollas yellowish green, 3–4 mm;

style branches ca. 1 mm, apices acute.

200–500+;

corollas maroon proximally, greenish distally, 4–5 mm;

style branches ca. 1.5 mm, apices acute to rounded.

to 1.5 cm.

to 4 cm (margins sometimes ciliate, apices attenuate).

borne singly or (2–10) in ± corymbiform arrays.

borne singly or in ± corymbiform arrays.

4–5.5 mm;

pappi coroniform or of ± connate scales, to 1.2 mm.

5.2–7 mm;

pappi coroniform, to 1.8 mm.

15–35 × 14–22 mm.

20–60 × 12–30 mm.

= 36.

= 36.