Flora of North America species comparison

erect, hispid to hirsute.

erect, glabrous (glaucous).

mostly cauline; mostly alternate;

petioles 1–4 cm;

blades lance-linear or lance-ovate to ovate, 3–15 × 2–6 cm, bases cuneate to truncate, margins usually serrate, abaxial faces sparsely hirsute, gland-dotted.

mostly cauline; mostly alternate;

petioles 0–3 cm;

blades (light to dark green, 3-nerved distal to bases), lanceolate, 10–20 × 2.5–6 cm, bases ± cuneate, margins entire or subentire, abaxial faces hispid to hirsute, gland-dotted.

3–13 cm.

(1–)3–15 cm (gland-dotted).

hemispheric, 17–25 mm diam.

broadly hemispheric, 10–25 mm diam.

12–17;

laminae 14–20 mm.

12–21;

laminae 15–30 mm.

75+ (discs usually 2+ cm diam.);

corollas 5–7 mm, lobes usually reddish;

anthers dark, appendages dark (style branches reddish).

50+;

corollas 6–8 mm, lobes yellow;

anthers reddish to dark, appendages reddish brown.

10–18, usually lanceolate to lance-ovate, 9–27 × (3–)3.5–5 mm (often surpassing discs), apices gradually attenuate, abaxial faces hirsute.

25–35 (loose), lanceolate, 8–15 × 3–5 mm (notably surpassing discs), (margins sometimes ciliate) apices acute to attenuate, abaxial faces hispidulous to glabrate, gland-dotted.

1–3.

3–10.

3.5–4.5 mm, glabrate;

pappi of 2 lanceolate scales 1.7–3 mm.

4.5–5 mm, glabrate;

pappi of 2 aristate scales 3–4 mm.

9.5–10.5 mm, 3-toothed (middle teeth subulate, surpassing discs, apices glabrous).

10–11 mm, 3-toothed (apices acute, hispidulous).

= 34.

= 102.