Flora of North America species comparison

erect, usually hispid to ± hirsute.

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

mostly basal; mostly opposite;

petioles 0–3 cm (broadly winged);

blades (3-nerved distal to bases) ovate or lanceolate to spatulate, 6–28 × 1.2–4.3 cm, bases cuneate, margins entire (often revolute), abaxial faces hispid to ± hirsute, not gland-dotted (cauline leaves relatively few, narrowly lanceolate to linear, much smaller).

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.

10–15 cm.

4–15(–40) cm.

broadly hemispheric, 15–25 mm diam.

± hemispheric, 10–24 mm diam.

12–18;

laminae 14–36 mm (abaxial faces not gland-dotted).

10–30;

laminae 15–20 mm.

100+;

corollas 5.5–6.5 mm, lobes reddish;

anthers purplish, apendages purplish (style branches usually reddish).

50–100+;

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

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

24–30, lanceolate to lance-ovate, 8–13 × 2–5 mm, (margins sometimes ciliate) apices acute to short-acuminate or acuminate, abaxial faces sparsely hispid to glabrate.

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(–5).

1–5.

4–5 mm, glabrate;

pappi of 2 aristate scales 1.7–2.5 mm plus 1–3 deltate scales 0.5–1.5 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.

7–9 mm, 3-toothed (apices purplish).

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

= 34.

= 34.