Flora of North America species comparison

erect, usually strigose or hispid to glabrate.

erect, sparsely hispid.

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).

mostly cauline; mostly alternate;

petioles 1.2–5 cm;

blades ovate to lance-ovate, 4.5–13 × 1–4 cm, bases cuneate, margins entire, abaxial faces sparsely hispid, not gland-dotted.

4–13 cm.

4–9 cm.

hemispheric, 10–24 mm diam.

hemispheric, 20–27 mm diam.

14–20;

laminae ca. 8–11 mm.

7–12;

laminae 18–37 mm.

40+;

corollas 4.8–5.8 mm, lobes reddish;

anthers purplish, appendages reddish (style branches yellow).

25+;

corollas 6.8–7.5 mm, lobes reddish;

anthers dark, appendages dark (style branches reddish).

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.

11–23, laceolate to lance-linear or lance-ovate, 17–33 × 1–2.9 mm (notably surpassing discs), (margins ± ciliate) apices attenuate, abaxial faces usually sparsely hispid to hispidulous.

1–9.

usually borne singly.

2.7–3.5 mm, glabrate;

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

4.6–9 mm, appressed hairy;

pappi of 2 linear scales 2–4.5 mm plus 4–6 scales 1–3.5 mm.

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

7–8 mm, apices 3-toothed (middle teeth attenuate, apices purplish, ± hispid).

= 34.

= 34.