Flora of North America species comparison

erect, usually hispid.

erect, glabrous or glabrate.

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 opposite, sometimes alternate (distal);

petioles 1–3 cm;

blades (light to dark green, 3-nerved distal to bases) lanceolate to lance-ovate or ovate, 7–18 × 2–10 cm, bases subcordate to ± cuneate, margins entire to ± serrate, abaxial faces glabrous or tomentulose, usually densely gland-dotted.

2–20 cm.

1–9 cm.

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

cylindric to hemispheric, 8–20 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

10–20;

laminae ca. 12–20(–30) 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 or reddish brown.

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.

18–25 (erect, loose, or squarrose), lanceolate, 5.5–10 × 1.5–3 mm (equaling or slightly surpassing discs), (margins usually ciliate) apices acute to acuminate, abaxial faces glabrous or hispidulous, usually not gland-dotted.

1–9.

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.

4–5.5 mm, glabrate;

pappi of 2 aristate scales (1–)2–2.5 mm.

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

5.3–6.5 mm, 3-toothed.

= 34.

= 68, 102.