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, reddish tan, becoming darker, branched, short-stipitate-glandular, usually resinous.

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 to spreading;

blades elliptic to narrowly oblanceolate (flat or somewhat concave adaxially), 10–35 × 2–5 mm, midnerves evident (often with 1–2 fainter, collateral veins), apices acute, apiculate, faces short-stipitate-glandular, usually gland-dotted;

axillary fascicles absent.

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

1–10 mm (bracts 1–5, resembling phyllaries, stipitate-glandular).

broadly campanulate, 8–12 × 12–15 mm.

obconic, 5.5–7.5 × 2.5–4 mm.

(0–)1–7;

laminae 7–10 × 1.5–2.8 mm.

1–8;

laminae elliptic, 3–4 × 0.8–1.3 mm.

7–20;

corollas 8–9.5 mm.

5–15;

corollas 5–7 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.

30–40 in 4–5 series, tan, lanceolate to elliptic, 2–7 × 0.5–1.2 mm, strongly unequal, mostly chartaceous (bodies abruptly constricted at bases of appendages), midnerves faint, (margins membranous, sparsely ciliate apically), apices (usually recurved) usually acute to cuspidate, sometimes long-acuminate, abaxial faces glabrate, often gland-dotted.

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

in cymiform arrays (to 4 cm wide).

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

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

usually tan, sometimes reddish, narrowly obconic, 4–5.5 mm, glabrous or densely sericeous;

pappi whitish tan, 4–5.5 mm.

= 18.