Flora of North America species comparison

erect, 5–30 dm, scabrous to scabro-hispidulous.

erect (leafy), ± hispid to glabrate.

cauline; mostly alternate;

petioles 0–2 cm;

blades (light green to gray-green, 1-nerved, conduplicate) lanceolate, 10–30 × 2–5.5 cm, bases cuneate, margins usually entire, sometimes serrulate, abaxial faces scabrous to scabro-hispid, gland-dotted.

cauline; alternate;

petioles 7–12 cm;

blades deltate-ovate, 7–14 × 7.5–12.3 cm, bases usually ± cordate, sometimes truncate, margins subentire to serrulate, abaxial faces strigose, not gland-dotted.

1–11 cm.

10–40 cm.

hemispheric, 13–28 mm diam.

± hemispheric, (23–28 ×) 10–14 mm.

10–25;

laminae (15–)25–40 mm.

21–31;

laminae 29–39 mm.

75+;

corollas 5–7 mm, lobes yellow;

anthers dark brown or black;

appendages usually yellow, sometimes partly dark.

150+;

corollas 6–6.5 mm, lobes reddish;

anthers dark, appendages purplish (style branches reddish).

30–40, lanceolate, 14–20 × 2–3 mm, (margins ciliate) apices acute to attenuate, abaxial faces canescent, gland-dotted.

25–35, lanceolate, 14–25 × 2.3–4 mm (surpassing discs), apices long-attenuate, abaxial faces strigillose to hispid.

(1–)3–15 (often in racemiform to spiciform arrays).

1–5.

3–4 mm, glabrate;

pappi of 2 aristate scales 3–4.1 mm.

4–5 mm, strigillose to glabrate;

pappi of 2 aristate scales 2.8–3.2 mm.

7–11 mm, entire or 3-toothed (apices greenish, mucronate, hairy).

9–10 mm, 3-toothed (middle teeth ± ciliate or bearded, hairs whitish, 0.3–0.6 mm).

= 34.

= 34.