Flora of North America species comparison

erect, usually hispid.

erect, usually glabrous, sometimes proximally hirsute (glaucous).

mostly cauline; mostly alternate;

petioles 2–20 cm;

blades lance-ovate to ovate, 10–40 × 5–40 cm, bases cuneate to subcordate or cordate, margins serrate, abaxial faces usually ± hispid, sometimes gland-dotted.

cauline; opposite (proximal) or alternate;

sessile or subsessile;

blades (grayish green or bluish green) lanceolate, 8–15 × 1.5–3.5 cm, bases ± cuneate, margins serrate to subentire, abaxial faces glabrous or glabrate (smooth or slightly rough to touch, glaucous).

2–20 cm.

2–8 cm. cm.

hemispheric or broader, 15–40(–200+) mm diam.

cylindric, 10–15 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

5–10;

laminae 15–20 mm.

150+(–1000+);

corollas 5–8 mm (throats ± bulbous at bases), lobes usually reddish, sometimes yellow;

anthers brownish to black, appendages yellow or dark (style branches yellow).

35+;

corollas 5.5–6.5 mm, lobes yellow;

anthers dark, appendages dark.

20–30(–100+), ovate to lance-ovate, 13–25 × (3–)5–8 mm, (margins usually ciliate) apices abruptly narrowed, long-acuminate, abaxial faces usually hirsute to hispid, rarely glabrate or glabrous, usually gland-dotted.

23–28, lanceolate, 6–13 × 2–3 mm, (margins sometimes ciliate) apices acuminate, abaxial faces glabrous, not gland-dotted.

1–9.

1–6.

(3–)4–5(–15) mm, glabrate;

pappi of 2 lanceolate scales 2–3.5 mm plus 0–4 obtuse scales 0.5–1 mm.

4–5.5 mm, glabrous;

pappi of 2 aristate scales 3.2–4.1 mm plus 0–1 deltate scales 0.5–1.1 mm.

9–11 mm, 3-toothed (middle teeth long-acuminate, glabrous or hispid).

8.5–10 mm, 3-toothed to subentire.

= 34.

= 68.