Flora of North America species comparison

erect to ascending, green when young, soon reddish to brownish, branched, glabrous or tomentose, stipitate-glandular.

erect to spreading, green when young, becoming brown, branched proximally, densely floccose-tomentose, eglandular.

mostly erect or ascending;

blades spatulate (flat), 15–30 × 3–7 mm, midnerves (and sometimes 2 fainter, collateral nerves) evident (slightly raised abaxially), apices obtuse, mucronate, faces glabrous or tomentose and/or stipitate-glandular;

axillary fascicles absent.

ascending;

blades linear (adaxially sulcate), 10–30 × 1–2 mm, midnerves evident, apices acute, faces mostly densely tomentose, stipitate-glandular;

sometimes with axillary leaf fascicles.

usually less than 20, rarely to 100 mm (leafy).

2–20 mm (usually leafy).

broadly campanulate, 8–12 × 12–15 mm.

obconic, 9–11 × 6–9 mm.

(0–)1–7;

laminae 7–10 × 1.5–2.8 mm.

0.

7–20;

corollas 8–9.5 mm.

10–22;

corollas 9–11 mm.

18–28 in 2–3 series, green to tan, lanceolate to elliptic, 10–14 × 1.3–2.7 mm, subequal (outer sometimes slightly longer than inner), outer herbaceous or with herbaceous appendages, inner mostly chartaceous, midnerves (and often 2 collateral nerves) evident, (margins often narrowly membranous, fimbriate or tomentose) apices acute, acuminate to cuspidate, abaxial faces stipitate-glandular.

20–30 in 2–3 series, green to tan, oblong to lanceolate, 5–10 × 0.8–1.5 mm, subequal, mostly chartaceous, outer herbaceous or herbaceous-tipped, midnerves usually evident, apices acute to acuminate, abaxial faces hairy, stipitate-glandular.

(12–22) usually in (leafy) congested, cymiform or racemiform arrays, rarely borne singly.

borne singly or in cymiform arrays.

tan to reddish, ellipsoid, 5–7 mm, glabrous or distally hairy;

pappi off-white to reddish brown, 7–9 mm.

brownish, narrowly oblong, 5–6 mm, densely hairy;

pappi tan, 8–10 mm.

= 18.