Flora of North America species comparison

erect, usually hispid.

erect, usually sparsely strigose, sometimes hispid as well.

mostly cauline; mostly alternate;

petioles 2–20 cm;

blades lance-ovate to ovate, 10–40 × 5–40 cm, bases cuneate to subcordate or cordate, margins serrate, abaxial faces usually ± hispid, sometimes gland-dotted.

mostly cauline; opposite (proximal) or alternate;

petioles 0–0.2 cm;

blades (± 3-nerved distal to bases) narrowly lanceolate to linear, 5–11.5 × 0.15–1 cm, bases cuneate, margins entire (often ± ciliate proximally), faces sparsely strigose or scabrous to glabrate, sparsely gland-dotted.

2–20 cm.

1–10 cm.

hemispheric or broader, 15–40(–200+) mm diam.

hemispheric, 5–6 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

7–8;

laminae (10–)15–20 mm.

150+(–1000+);

corollas 5–8 mm (throats ± bulbous at bases), lobes usually reddish, sometimes yellow;

anthers brownish to black, appendages yellow or dark (style branches yellow).

30+;

corollas 2.8–3.5 mm, lobes yellow;

anthers dark, appendages dark.

20–30(–100+), ovate to lance-ovate, 13–25 × (3–)5–8 mm, (margins usually ciliate) apices abruptly narrowed, long-acuminate, abaxial faces usually hirsute to hispid, rarely glabrate or glabrous, usually gland-dotted.

11–17, linear, 5.5–8 × 0.8–1.3 mm (margins sparsely hispido-ciliate, hairs 0.5–1.2 mm), apices acute to acuminate, abaxial faces glabrate, not gland-dotted.

1–9.

usually 5+.

(3–)4–5(–15) mm, glabrate;

pappi of 2 lanceolate scales 2–3.5 mm plus 0–4 obtuse scales 0.5–1 mm.

2.2–2.3 mm, sparsely puberulent (bases and apices);

pappi 0.

9–11 mm, 3-toothed (middle teeth long-acuminate, glabrous or hispid).

(ovate) 3.5–4.6 mm, entire (1-toothed).

= 34.

= 34.