Flora of North America species comparison

erect, hispid or strigose.

erect, usually strigose or hispid to glabrate.

cauline; opposite;

petioles 0.4–3 cm;

blades (ashy green, usually 3-nerved from bases) lanceolate to ovate, 4–15 × 1–5 cm, bases ± cuneate to truncate, margins entire or serrate, faces strigoso-hispid, gland-dotted.

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).

0.5–5.5 cm.

4–13 cm.

cylindric, 7–14 mm diam.

hemispheric, 10–24 mm diam.

8–13;

laminae 15–20 mm (abaxial faces gland-dotted).

14–20;

laminae ca. 8–11 mm.

30+: corollas 5–6 mm, lobes yellow;

anthers dark brown to black, appendages dark.

40+;

corollas 4.8–5.8 mm, lobes reddish;

anthers purplish, appendages reddish (style branches yellow).

15–25 (loosely appressed), lanceolate to ovate, 3.5–7.5 × 2–3.5 mm, apices acute to acuminate, abaxial faces ± hispid or strigose (hairs whitish), gland-dotted.

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.

1–6.

1–9.

3–4 mm, sparsely hairy;

pappi of 2 aristate scales 4–4.5 mm plus 0–4 deltate scales 0.5–1 mm.

2.7–3.5 mm, glabrate;

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

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

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

= 34.

= 34.