Flora of North America species comparison

erect, usually strigose or hispid to glabrate.

erect, glabrous proximally, distally glabrate, scabrellous, or strigillose (glaucous).

cauline; opposite or alternate;

sessile;

blades (green or grayish, 1- or 3-nerved) lanceolate, 5–9 × 0.5–3.5 cm, bases ± cuneate, margins entire or irregularly toothed to lobed, faces strigose to strumose, gland-dotted (adaxial sometimes glaucous).

cauline; opposite (proximal) or alternate;

petioles (1–)2–5 cm;

blades (light to dark green, 3-nerved distal to bases) lanceolate to lance-ovate, 10–32 × (1.2–)4–9 cm, bases cuneate, margins usually coarsely to shallowly serrate, rarely subentire (flat), abaxial faces puberulent to tomentulose, gland-dotted.

4–13 cm.

0.3–10 cm.

hemispheric, 10–24 mm diam.

14–20;

laminae ca. 8–11 mm.

14–20;

laminae 23–40 mm.

40+;

corollas 4.8–5.8 mm, lobes reddish;

anthers purplish, appendages reddish (style branches yellow).

100+;

corollas 5–6 mm, lobes yellow;

anthers dark brown to black, appendages yellow.

16–21, lanceolate, 6–7.5 × 1.8–2.5 mm (often subequal), (margins ciliate) apices acute, abaxial faces hispidulous or strigose to glabrate, gland-dotted.

25–30 (loose, spreading), lance-linear, 10–14 × 1.5–2.5 mm (subequal), (margins ± ciliate) apices attenuate, abaxial faces glabrous or puberulent, not gland-dotted.

1–9.

3–15+.

2.7–3.5 mm, glabrate;

pappi of 2(–3) aristate scales 1.4–2.5 mm.

3–4 mm, glabrate;

pappi of 2 aristate scales 1.9–2.5 mm.

7–7.8 mm, entire or 3-toothed (apices obtuse to acute, hispid-ciliate to glabrate).

7–8 mm, entire or 3-toothed (apices acuminate, ± hairy).

-lucres broadly hemispheric, 15–25 mm diam.

= 34.

= 34.