Flora of North America species comparison

erect, usually hispid.

erect, usually hispid to ± hirsute.

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 basal; mostly opposite;

petioles 0–3 cm (broadly winged);

blades (3-nerved distal to bases) ovate or lanceolate to spatulate, 6–28 × 1.2–4.3 cm, bases cuneate, margins entire (often revolute), abaxial faces hispid to ± hirsute, not gland-dotted (cauline leaves relatively few, narrowly lanceolate to linear, much smaller).

2–20 cm.

10–15 cm.

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

broadly hemispheric, 15–25 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

12–18;

laminae 14–36 mm (abaxial faces not 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).

100+;

corollas 5.5–6.5 mm, lobes reddish;

anthers purplish, apendages purplish (style branches usually reddish).

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.

24–30, lanceolate to lance-ovate, 8–13 × 2–5 mm, (margins sometimes ciliate) apices acute to short-acuminate or acuminate, abaxial faces sparsely hispid to glabrate.

1–9.

1–3(–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.

4–5 mm, glabrate;

pappi of 2 aristate scales 1.7–2.5 mm plus 1–3 deltate scales 0.5–1.5 mm.

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

7–9 mm, 3-toothed (apices purplish).

= 34.

= 34.