Flora of North America species comparison

decumbent to erect, glabrous, hirsute, or puberulent.

erect, glabrous.

mostly cauline; mostly alternate;

petioles 1–7 cm;

blades deltate-ovate, lance-ovate, or ovate, 2.5–14 × 1.8–13 cm, bases cordate to truncate or broadly cuneate, margins subentire to serrate, abaxial faces glabrate to hispid, not gland-dotted.

cauline; opposite or alternate;

petioles 0.3–3 cm;

blades (greenish, at least abaxially, 3-nerved at bases) lanceolate, 7.2–15.5 × 1.3–4 cm, bases cuneate, margins entire or serrate, abaxial faces tomentulose, densely gland-dotted.

9–50 cm.

1–3(–8) cm.

hemispheric, 10–22 mm diam.

cylindric, 5–7 mm diam.

11–20;

laminae 12–23 mm.

5–8;

laminae 10–14 mm.

30+;

corollas 4.5–5 mm, lobes usually reddish, sometimes yellow;

anthers dark, appendages dark (style branches usually reddish, rarely yellow).

15–22;

corollas 4–5.5 mm, lobes yellow;

anthers dark, appendages dark.

20–30, lanceolate, 8–17 × 1–3 mm, apices acute to long-attenuate, abaxial faces glabrous or ± hispid, not gland-dotted.

12–17, lance-linear, 3–6.5 × 1.5–2.5 mm, (margins ciliate) apices acuminate, abaxial faces glabrate, not gland-dotted.

1–3.

(1–)3–15+.

2.5–3.2 mm, glabrous or sparsely hairy;

pappi of 2 lanceolate or lance-linear scales 1.2–2.5 mm.

3.5–4.2 mm, glabrous;

pappi of 2 aristate scales 1.5–2.2 mm.

7.5–8 mm, apices 3-toothed (middle teeth acuminate, usually glabrous or hispid, sometimes ± villous or bearded).

5–7 mm, 3-toothed (apices hairy).

= 34.