Flora of North America species comparison

erect, usually hispid.

erect, strigose or 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.

basal and cauline; opposite or alternate;

petioles 0.5–1 cm;

blades (3-nerved distal to bases) linear-lanceolate to lanceolate, 9–22 cm × 0.7–4 cm, bases cuneate, margins entire or sub-entire (usually slightly revolute), abaxial faces hispidulous to tomentulose, gland-dotted.

2–20 cm.

1–13 cm.

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

± hemispheric, 13–18 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

12–23;

laminae 16–40 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).

100+;

corollas 5–5.5 mm, lobes yellow or reddish;

anthers dark brown or black, appendages 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.

25–35 (loose), lance-linear to lanceolate, 6–17 × 1.5–3 mm, apices acuminate, abaxial faces glabrate to sparsely strigose, gland-dotted.

1–9.

1–15.

(3–)4–5(–15) mm, glabrate;

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

2.5–3 mm, glabrous;

pappi of 2 (usually unequal) aristate scales 1.5–2.4 mm.

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

5.5–6.5 mm, 3- (or 5-)toothed (distally strigose, gland-dotted).

= 34.

= 34.