Flora of North America species comparison

(often reddish or purplish) erect, hirsute or villous.

erect, (unbranched) glabrous, eglandular.

mostly cauline; mostly alternate;

petioles 0.5–2 cm (broadly winged);

blades lanceolate to ovate, 6.5–20 × 3.2–9 cm, bases gradually narrowed (onto petioles), margins entire or serrate, abaxial faces hirsute to tomentose, gland-dotted.

mostly basal; opposite (proximal) or alternate;

petioles obscure (intergrading with blades);

blades lanceolate to lance-linear or linear, 10–25 × 0.5–1.5 cm, bases cuneate, margins entire, faces glabrous, not gland-dotted (cauline 1–5 pairs, smaller).

1–3 cm.

5–10 cm.

hemispheric, 15–27 mm diam.

broadly hemispheric, 17–25 mm diam.

10–20;

laminae (often light yellow) 18–30 mm.

12–17;

laminae 20–40 mm, (abaxial faces not gland-dotted).

90+;

corollas 8–8.5 mm, lobes yellow;

anthers dark, appendages dark.

100+;

corollas 6–6.5 mm, lobes yellow;

anthers dark, appendages yellowish or dark.

20–30 (squarrose to reflexed, at least tips), lanceolate, 10–21 × 3–5 mm (notably surpassing discs), apices acute to attenuate, abaxial faces hispid to villous, densely gland-dotted (at least toward apices).

(green with purple veins) 25–30, ovate to lance-ovate, 8–16 × 3–5 mm, apices acuminate, abaxial faces usually glabrous, sometimes puberulent.

1–5.

1(–3).

5–7 mm, glabrate;

pappi of 2 aristate scales 2.4–2.6 mm.

3 mm, glabrous;

pappi of 2 aristate scales 1.5–2 mm plus 2–4 erose scales 0.3–0.6 mm.

9–11 mm, 3-toothed (gland-dotted).

8–9 mm, 3-toothed (middle teeth long-acuminate).

= 102.

= 34.