Flora of North America species comparison

erect, usually hispid.

erect, 5–30 dm, scabrous to scabro-hispidulous.

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; mostly alternate;

petioles 0–2 cm;

blades (light green to gray-green, 1-nerved, conduplicate) lanceolate, 10–30 × 2–5.5 cm, bases cuneate, margins usually entire, sometimes serrulate, abaxial faces scabrous to scabro-hispid, gland-dotted.

2–20 cm.

1–11 cm.

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

hemispheric, 13–28 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

10–25;

laminae (15–)25–40 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).

75+;

corollas 5–7 mm, lobes yellow;

anthers dark brown or black;

appendages usually yellow, sometimes partly 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, 14–20 × 2–3 mm, (margins ciliate) apices acute to attenuate, abaxial faces canescent, gland-dotted.

1–9.

(1–)3–15 (often in racemiform to spiciform arrays).

(3–)4–5(–15) mm, glabrate;

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

3–4 mm, glabrate;

pappi of 2 aristate scales 3–4.1 mm.

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

7–11 mm, entire or 3-toothed (apices greenish, mucronate, hairy).

= 34.

= 34.