Flora of North America species comparison

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

erect, scabro-hispid.

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, or opposite (proximal) and alternate;

petioles 0–1 cm;

blades lance-ovate to oblong-lanceolate, or rhombic-ovate to lance-linear, 5–27 × 2–6 cm, bases cuneate, margins serrate to subentire, abaxial faces sparsely hispid, sparsely, if at all, gland-dotted (cauline smaller).

1–3 cm.

3–12 cm.

hemispheric, 15–27 mm diam.

hemispheric, 15–23 mm diam.

10–20;

laminae (often light yellow) 18–30 mm.

10–20;

laminae 20–35 mm (abaxial faces usually gland-dotted).

90+;

corollas 8–8.5 mm, lobes yellow;

anthers dark, appendages dark.

75+;

corollas 6.5–7 mm, lobes usually reddish, sometimes yellow;

anthers dark, appendages dark (style branches yellow).

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).

25–35, ovate, 6–10 × 3–5 mm, (margins ciliate) apices acute, abaxial faces glabrate to hispid.

1–5.

1–10.

5–7 mm, glabrate;

pappi of 2 aristate scales 2.4–2.6 mm.

5–6 mm, glabrate;

pappi of 2 aristate scales 4.5–5 mm plus 1–4 smaller aristate scales 0.3–2 mm.

9–11 mm, 3-toothed (gland-dotted).

9–10 mm, shallowly 3-toothed to subentire (apices ciliate, hairy).

= 102.

= 102 (subspecies unknown).