Flora of North America species comparison

erect, usually hispid.

erect, glabrous (glaucous).

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; usually whorled (3s–6s), sometimes opposite;

sessile or subsessile, petioles 0–1 cm;

blades linear to lanceolate, 7.5–18.5 × 0.7–3 cm, bases cuneate, margins serrulate or entire (flat), faces puberulent (abaxial) or hispid-strumose (adaxial), gland-dotted.

2–20 cm.

1–10 cm.

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

broadly campanulate, 15–20 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

10–19;

laminae 20–26 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).

150+;

corollas 5–7 mm, lobes yellow;

anthers dark, appendages 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.

45–55, lance-linear, 12–18 × 2–2.5 mm, (margins ciliate) apices long-attenuate, abaxial faces glabrate to sparsely puberulent, gland-dotted.

1–9.

(1–)3–7+.

(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, glabrous;

pappi of 2 aristate scales 2.2–2.5 mm.

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

5–8 mm, entire or 3-toothed (apices ciliate).

= 34.

= 34.