Flora of North America species comparison

erect, usually hispid.

erect, glabrous.

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 or alternate;

petioles 0.3–3 cm;

blades (greenish, at least abaxially, 3-nerved at bases) lanceolate, 7.2–15.5 × 1.3–4 cm, bases cuneate, margins entire or serrate, abaxial faces tomentulose, densely gland-dotted.

2–20 cm.

1–3(–8) cm.

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

cylindric, 5–7 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

5–8;

laminae 10–14 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).

15–22;

corollas 4–5.5 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.

12–17, lance-linear, 3–6.5 × 1.5–2.5 mm, (margins ciliate) apices acuminate, abaxial faces glabrate, not gland-dotted.

1–9.

(1–)3–15+.

(3–)4–5(–15) mm, glabrate;

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

3.5–4.2 mm, glabrous;

pappi of 2 aristate scales 1.5–2.2 mm.

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

5–7 mm, 3-toothed (apices hairy).

= 34.

= 34.