Flora of North America species comparison

decumbent to erect, glabrous, hirsute, or puberulent.

erect, usually densely canescent, hispid, or strigillose, rarely ± hirsute or glabrate.

mostly cauline; mostly alternate;

petioles 1–7 cm;

blades deltate-ovate, lance-ovate, or ovate, 2.5–14 × 1.8–13 cm, bases cordate to truncate or broadly cuneate, margins subentire to serrate, abaxial faces glabrate to hispid, not gland-dotted.

mostly cauline; mostly alternate;

petioles 2–4 cm;

blades (often bluish green) lanceolate to deltate-ovate or ovate, 4–15 × 1–8 cm, bases subcordate or truncate to cuneate, margins entire or ± serrate, abaxial faces strigose, sparsely to densely, or not at all, gland-dotted.

9–50 cm.

4–15(–40) cm.

hemispheric, 10–22 mm diam.

± hemispheric, 10–24 mm diam.

11–20;

laminae 12–23 mm.

10–30;

laminae 15–20 mm.

30+;

corollas 4.5–5 mm, lobes usually reddish, sometimes yellow;

anthers dark, appendages dark (style branches usually reddish, rarely yellow).

50–100+;

corollas 4.5–6 mm, lobes usually reddish, rarely yellow;

anthers reddish to purplish, appendages purplish (style branches reddish).

20–30, lanceolate, 8–17 × 1–3 mm, apices acute to long-attenuate, abaxial faces glabrous or ± hispid, not gland-dotted.

14–25, lance-linear to lanceolate to lance-ovate, 10–14 × 1–4(–5) mm, (margins sometimes ciliate) apices short-attenuate, abaxial faces usually hispidulous, rarely sparsely hirsute to glabrate.

1–3.

1–5.

2.5–3.2 mm, glabrous or sparsely hairy;

pappi of 2 lanceolate or lance-linear scales 1.2–2.5 mm.

3–4.5 mm, ± villous;

pappi of 2 aristate scales 1.5–3 mm plus 0–2 erose scales 0.3–0.5 mm.

7.5–8 mm, apices 3-toothed (middle teeth acuminate, usually glabrous or hispid, sometimes ± villous or bearded).

4.5–7.5 mm, 3-toothed, middle teeth ± ciliate or bearded, hairs whitish, 0.5–0.7 mm.

= 34.