Flora of North America species comparison

erect, usually hispid.

(reddish or purplish) erect, hairy.

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; all or mostly opposite;

petioles 0–3 cm;

blades (1- or 3-nerved) lanceolate to lance-ovate, 5–11 × 2–3.5 cm, bases cuneate, margins entire or serrate, abaxial faces hispid, gland-dotted.

2–20 cm.

2.5–30 cm.

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

hemispheric, 13–20 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

13–21;

laminae 15–25 mm (abaxial faces 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).

50+;

corollas 5–6 mm, lobes reddish;

anthers reddish brown, appendages yellow or dull orange (style branches yellow).

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.

20–25, lanceolate, 4–8 × 1.5–3 mm, (margins ciliate) apices acute, abaxial faces hispidulous, gland-dotted.

1–9.

1–5.

(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 2.5–3 mm.

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

8–9 mm, subentire to weakly 3-toothed (apices acute, ciliate, gland-dotted).

= 34.

= 34.