Flora of North America species comparison

erect, hirsute.

erect, glabrous.

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; 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.

1–5 cm.

1–3(–8) cm.

hemispheric, 10–25 mm diam.

cylindric, 5–7 mm diam.

10–15;

laminae 15–20 mm.

5–8;

laminae 10–14 mm.

40+;

corollas 5.5–6.5 mm, lobes yellow;

anthers dark brown or black, appendages dark or yellowish.

15–22;

corollas 4–5.5 mm, lobes yellow;

anthers dark, appendages dark.

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.

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

1–7.

(1–)3–15+.

4–4.5 mm, glabrate or distally puberulent;

pappi of 2 aristate scales 2.5–3.2 mm.

3.5–4.2 mm, glabrous;

pappi of 2 aristate scales 1.5–2.2 mm.

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

5–7 mm, 3-toothed (apices hairy).

= 68.

= 34.