Flora of North America species comparison

erect, usually hispid.

erect, hirsute to villous.

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.

mostly cauline; mostly opposite (sometimes alternate among heads);

sessile;

blades (ashy or gray-green, 3-nerved distal to bases) lanceolate to broadly ovate, 5.5–14.5 × 1.8–6.5 cm, bases rounded to cordate, margins entire or serrulate, abaxial faces hispid to tomentose, gland-dotted.

2–20 cm.

0.1–15 cm.

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

broadly hemispheric, 12–25 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

17–22;

laminae 25–30 mm (abaxial faces densely gland-dotted).

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).

75+;

corollas 6–7.5 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.

30–40, lanceolate, (5–)10–16 × 2–3.5 mm, apices usually acute, sometimes acuminate, abaxial faces densely hispid to villous or tomentose, densely gland-dotted.

1–9.

1–15.

(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 mm, distally villous;

pappi of 2 aristate scales 2.8–3.2 mm.

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

(oblanceolate) 9–11 mm, entire (1-toothed, densely hairy, densely gland-dotted).

= 34.

= 34.