Flora of North America species comparison

erect, usually hispid.

(often reddish) erect, pilose to appressed-hairy proximally.

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 basal; opposite;

petioles 2.5–10 cm;

blades oblong-lanceolate or elliptic to ovate, 5–20 × 1.5–7 cm, bases cuneate, margins entire or serrulate, abaxial faces scabrous to hispidulous, gland-dotted (cauline usually smaller, rarely 2–4 pairs well developed).

2–20 cm.

1–14 cm.

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

cylindric, 9–14 mm diam.

(13–)17–30(–100+);

laminae 25–50 mm.

8–14;

laminae 18–22 mm (abaxial faces densely gland-dotted).

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).

50+;

corollas 4.5–5.5 mm, lobes yellow;

anthers dark brown or black, appendages yellow.

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.

20–25, lanceolate, 4.5–7(–11) × 1.5–2.5 mm, (margins usually ciliate) apices acute to short-acuminate, abaxial faces glabrate to sparsely pilose (hairs moniliform), not gland-dotted.

1–9.

1–4(–12).

(3–)4–5(–15) mm, glabrate;

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

3–4(–5) mm, sparsely villous or glabrate;

pappi of 2 aristate scales 1.5–2.8 mm plus 0–4 deltate scales 0.4–1 mm.

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

5–7 mm, subentire to 3-toothed (shortly mucronate).

= 34.

= 34 (subspecies unknown).