Flora of North America species comparison

(sometimes in 3s or 4s) sessile;

blades obovate or elliptic to lanceolate or linear, (20–)50–100(–160+) × (5–)10–25(–40+) mm, bases cuneate to rounded, margins usually coarsely dentate to serrate, sometimes ciliate, apices acute to acuminate, faces glabrous.

petioles (narrowly, if at all, winged) 5–20(–35+) mm;

blades lanceolate to lance-linear, (20–)30–50(–80+) × (3–)6–20(–30+) mm, sometimes laciniately 1-pinnatisect with 2–4+ lobes near bases, bases cuneate, margins incised to serrate, seldom ciliate, apices acute to attenuate, faces glabrous.

(10–)20–60 mm.

10–35(–55) mm.

turbinate to hemispheric or broader, (4–)6–8(–10+) × 8–12+ mm.

usually obconic to broadly campanulate, rarely hemispheric, (4–)6–7 × (4–)5–7 mm.

usually 7–8, rarely 0;

laminae orange-yellow, (10–)15–25(–30) mm.

usually 0, sometimes 1–3+;

laminae orange yellowish, 2–5(–10) mm.

(25–)60–100(–150+);

corollas yellow to orange-yellow, 3–6.5 mm.

(7–)20–70+;

corollas yellowish, 2.5–3.5 mm.

8–12, ovate or obovate to lance-oblong, (4–)6–8(–10+) mm (tips often orange to purplish, as are tips of paleae).

(4–)5–8,oblong to lance-ovate, (4–)5–8+ mm.

of 5–7(–9+) erect or spreading to reflexed, oblanceolate or lanceolate to linear, often foliaceous bractlets or bracts (6–)10–12(–20+) mm, margins usually ciliate, abaxial faces glabrous or bases hispidulous.

of (2–)3–5(–7) ± erect, oblanceolate or spatulate to linear, ± foliaceous bractlets or bracts (6–)10–25(–40+) mm, margins rarely ciliate, abaxial faces usually glabrous, sometimes sparsely hispidulous.

(erect at flowering, sometimes nodding in fruit) borne singly or in open, ± corymbiform arrays.

borne singly or in 2s or 3s.

blackish, red-brown, or stramineous, obcompressed, flattened or unequally 3–4-angled, ± cuneate, outer 6–8 mm, inner 8–10 mm, margins retrorsely ciliate or barbed, apices ± truncate to convex, faces ± 1-nerved, ± striate, glabrous;

pappi of 2–4 ± erect, retrorsely barbed awns 3–5 mm.

outer red-brown, ± flattened, sometimes 3–4-angled, broadly cuneate, 4–5(–6) mm, inner blackish, narrowly cuneate, (5–)6–7(–8+) mm, margins glabrous or sparsely antrorsely strigillose,apices ± truncate to convex, faces ± 1-nerved, glabrous or sparsely setulose, usually smooth, sometimes ± tuberculate;

pappi 0, or of 2(–4) spreading to divergent, antrorsely or retrorsely barbed awns (0.1–)1–3.5+ mm.

= 22, 24.

= 48.