Flora of North America species comparison

decumbent to erect, glabrous, hirsute, or puberulent.

erect, distally densely hispid.

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 basal; opposite;

petioles obscure (intergrading with blades);

blades obovate to orbiculate, 4.6–14.5 × 2.1–12 cm, bases broadly cuneate to rounded, margins entire or serrulate, abaxial faces strigoso-hispid, not gland-dotted (cauline usually much smaller, alternate distally).

9–50 cm.

10–20 cm.

hemispheric, 10–22 mm diam.

shallowly hemispheric, (15–25 ×) 5–8 mm.

11–20;

laminae 12–23 mm.

0 or 2–8;

laminae (sometimes purplish) 1–2(–10) mm.

30+;

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

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

100–150+;

corollas 7–8 mm, lobes reddish;

anthers dark, appendages dark.

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

(often dark purple) 25–33, lanceolate to ovate, 10–14 × 3–5 mm, apices acute to acuminate, abaxial faces hispid or glabrous.

1–3.

usually borne singly.

2.5–3.2 mm, glabrous or sparsely hairy;

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

3–4 mm, glabrate;

pappi of 2 (often unequal) aristate scales 0.5–2.9 mm.

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

9–10 mm, subentire to 3-toothed (apices purplish, mucronate).

= 34.