Flora of North America species comparison

erect, usually hispid.

erect to prostrate, 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, petioles 0–1 cm;

blades (light to dark green, 3-nerved at bases) lance-linear to lanceolate, 5–15 × 0.5–2.5 cm, bases cuneate, margins entire, abaxial faces glabrous or scabro-hispid, gland-dotted.

2–20 cm.

2–10 cm.

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

hemispheric, 12–28 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

12–16;

laminae 20–35 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).

40+;

corollas 6.5–7.5 mm, lobes yellow;

anthers usually dull orange or orange-brown, sometimes yellowish, appendages dull orange to yellowish.

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.

12–18, lanceolate, 11–18 × 1.5–3 mm, apices acute to acuminate, abaxial faces gland-dotted.

1–9.

1–3.

(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 mm, glabrate;

pappi of 2 aristate scales 3–4.2 mm.

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

(lanceolate) 9–13 mm, subentire or 3-toothed (apices sparsely hairy, sometimes gland-dotted).

= 34.

= 34.