Flora of North America species comparison

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

(often reddish) erect, hairy.

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 0.7–2.5 cm;

blades lance-linear to lance-ovate or ovate, 3–15 × 0.5–3 cm, bases cuneate, margins usually entire or shallowly serrate, abaxial faces gland-dotted.

1–15 cm.

(1–)3–13(–20) cm.

hemispheric, (10–25 ×) 8–12 mm.

hemispheric, 15–20 mm diam.

10–20;

laminae 25–40 mm.

10–13;

laminae 14–20 mm.

60+;

corollas 6–7 mm, lobes yellow;

anthers dark brown or black, appendages dark or yellowish.

50+;

corollas 4–6 mm, lobes reddish;

anthers reddish purple, appendages usually purplish (style branches reddish or yellow).

(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.

12–17, lanceolate, 8–17 × 3–4 mm, apices narrowed gradually, abaxial faces hirsute.

3–15.

1–7.

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.

(2.5–)3–3.5(–4) mm, glabrate;

pappi of 2 lanceolate scales 1.7–2.7 mm.

8–9 mm, 3-toothed (apices hairy).

9.5–10 mm, 3-toothed (middle teeth surpassing discs, apices greenish or yellow-brown, glabrous).

= 102.

= 34.