Flora of North America species comparison

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

(green or purplish) erect, glabrous (glaucous).

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).

cauline; alternate;

sessile or subsessile;

blades linear to lance-linear, 8–21 × 0.2–1.2 cm, bases ± attenuate, margins slightly serrulate to subentire (flat), abaxial faces glabrate, gland-dotted.

1–15 cm.

2–6 cm.

hemispheric, (10–25 ×) 8–12 mm.

campanulate, 10–18 mm diam.

10–20;

laminae 25–40 mm.

10–20;

laminae 28–35 mm (apices often bifid).

60+;

corollas 6–7 mm, lobes yellow;

anthers dark brown or black, appendages dark or yellowish.

50+;

corollas 5.5–6 mm, lobes reddish;

anthers dark, appendages dark (style branches 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.

40–50, linear to lance-linear, 12–20 × 1.8–2 mm, (margins ciliate) apices long-attenuate, abaxial faces glabrous or glabrate, not gland-dotted.

3–15.

6–15+.

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 mm, glabrous;

pappi of 2 aristate scales 3–3.6 mm plus 2–8 lacerate scales 0.3–0.5 mm.

8–9 mm, 3-toothed (apices hairy).

8–10 mm, entire or weakly 3-toothed (apices greenish, ± hirsute).

= 102.

= 34.