Flora of North America species comparison

erect, scabro-hispid to hirsute (sometimes glaucous).

erect, sparsely hispid.

mostly cauline; opposite or alternate proximally, usually alternate distally;

petioles 2–8 cm (often ± winged);

blades (3-nerved from near bases) lanceolate to ovate, 10–23 × 7–15 cm, bases broadly to narrowly cuneate, margins entire or serrate (flat), abaxial faces puberulent or hirsutulous to tomentulose and gland-dotted (abaxial) or ± scabrous (adaxial).

mostly cauline; mostly alternate;

petioles 1.2–5 cm;

blades ovate to lance-ovate, 4.5–13 × 1–4 cm, bases cuneate, margins entire, abaxial faces sparsely hispid, not gland-dotted.

1–15 cm.

4–9 cm.

hemispheric, (10–25 ×) 8–12 mm.

hemispheric, 20–27 mm diam.

10–20;

laminae 25–40 mm.

7–12;

laminae 18–37 mm.

60+;

corollas 6–7 mm, lobes yellow;

anthers dark brown or black, appendages dark or yellowish.

25+;

corollas 6.8–7.5 mm, lobes reddish;

anthers dark, appendages dark (style branches reddish).

(often dark green, drying nearly black) 22–35 (bases appressed, apices ± spreading, sometimes reflexed in fruit), lanceolate, 8.5–15 × 2–4 mm (subequal), (margins ciliate) apices acuminate, abaxial faces hispidulous or puberulent, gland-dotted.

11–23, laceolate to lance-linear or lance-ovate, 17–33 × 1–2.9 mm (notably surpassing discs), (margins ± ciliate) apices attenuate, abaxial faces usually sparsely hispid to hispidulous.

3–15.

usually borne singly.

5–7 mm, glabrous or distally hairy;

pappi of 2 aristate scales 1.9–3 mm plus 0–1 deltate scales 0.5–0.8 mm.

4.6–9 mm, appressed hairy;

pappi of 2 linear scales 2–4.5 mm plus 4–6 scales 1–3.5 mm.

8–9 mm, 3-toothed (apices hairy).

7–8 mm, apices 3-toothed (middle teeth attenuate, apices purplish, ± hispid).

= 102.

= 34.