Flora of North America species comparison

erect, hirsute.

decumbent to ± erect, glabrous or glabrate (glaucous).

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; mostly opposite;

sessile;

blades (often bluish green, 1- or 3-nerved) linear to lanceolate, 3–7.5 × 0.5–2.2 cm, bases ± cuneate, margins entire or serrate (usually ciliate and undulate), faces glabrous or glabrate to hispid.

1–5 cm.

(1–)3–13 cm.

hemispheric, 10–25 mm diam.

hemispheric, 12–25 mm diam.

10–15;

laminae 15–20 mm.

10–18;

laminae 8–9 mm.

40+;

corollas 5.5–6.5 mm, lobes yellow;

anthers dark brown or black, appendages dark or yellowish.

35+;

corollas 4–6 mm, lobes reddish;

anthers brownish red, appendages brownish red (style branches yellow).

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.

16–19, ovate to lance-ovate, 3–8 × 2–3.5 mm, (margins ciliate) apices obtuse to acute, abaxial faces glabrate to ± strigose, not gland-dotted.

1–7.

1–5.

4–4.5 mm, glabrate or distally puberulent;

pappi of 2 aristate scales 2.5–3.2 mm.

3–3.5 mm, glabrous;

pappi of 2 aristate scales 1.2–1.5 mm.

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

7–7.5 mm, subentire to 3-toothed (apices obtuse to acute, hairy, gland-dotted).

= 68.

= 68, 102.