Flora of North America species comparison

branched from above bases, ± glabrous.

branched, coarsely scabrous.

alternate;

petioles 0–5 mm;

blades 3-nerved from bases, lance-elliptic, lance-ovate, lance-linear, or linear (folded or falcate), 10–130 × 2–9 mm, bases rounded or tapering, margins entire or nearly so, apices acuminate, faces gland-dotted, often puberulent (shiny).

alternate to subopposite;

petioles 1–5 mm;

blades 3-nerved from bases, lanceolate to lance-ovate, 20–40 × 7–20 mm, bases rounded to broadly cuneate, margins entire or serrate, apices acute to acuminate, faces sparsely pubescent, stipitate-glandular.

0–3 mm, glabrous or glutinous.

5–45 mm, pubescent, stipitate-glandular.

cylindric, 5–7 mm.

cylindric to campanulate, 7–11 mm.

3–7;

corollas cream, 3.5–4.5 mm.

11–22;

corollas pale yellow or cream, 4.7–6 mm.

10–24 in 6–8 series, pale green to stramineous, 3–5-striate, unequal, (glutinous) margins scarious;

outer ovate (apices acute), inner lanceolate (apices obtuse).

16–20 in 4–5 series, greenish, often purple-tinged, 4–8-striate, unequal, margins narrowly scarious, often ciliate (apices acute to long-attenuate);

outer lance-ovate (pubescent), inner narrowly lanceolate (glabrous).

in (leafy) paniculiform arrays.

in open, racemose or paniculiform arrays.

1.8–2.5 mm, scabrous;

pappi of 30–40 barbellulate bristles.

4–5 mm, silvery-setulose.

of 25–34 white, plumose bristles.