Flora of North America species comparison

erect, hirsute.

erect (leafy), ± hispid to glabrate.

cauline; mostly opposite;

petioles 0.4–2 cm;

blades (3-nerved from bases) lanceolate to ovate, 6.5–18 × 1–8 cm, bases truncate to broadly rounded or cuneate, margins subentire to serrate (flat), abaxial faces ± hirsute, gland-dotted (adaxial not 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.

1–5 cm.

10–40 cm.

hemispheric, 10–25 mm diam.

± hemispheric, (23–28 ×) 10–14 mm.

10–15;

laminae 15–20 mm.

21–31;

laminae 29–39 mm.

40+;

corollas 5.5–6.5 mm, lobes yellow;

anthers dark brown or black, appendages dark or yellowish.

150+;

corollas 6–6.5 mm, lobes reddish;

anthers dark, appendages purplish (style branches reddish).

18–25 (usually loose, spreading, not reflexed), lanceolate, 7–12 × 2.5–3.5 mm, (margins ciliate) apices acute to short-acuminate, abaxial faces not gland-dotted.

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

1–7.

1–5.

4–4.5 mm, glabrate or distally puberulent;

pappi of 2 aristate scales 2.5–3.2 mm.

4–5 mm, strigillose to glabrate;

pappi of 2 aristate scales 2.8–3.2 mm.

7–10 mm, 3-toothed (apices yellowish, hairy).

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

= 68.

= 34.