Flora of North America species comparison

branched, pubescent, gland-dotted.

branched from bases, densely pubescent, gland-dotted.

mostly alternate, sometimes opposite;

petioles 0–5 mm;

blades 3-nerved from bases (venation raised, reticulate), elliptic to lanceolate or ovate to subdeltate, 20–70 × 7–20 mm, bases ± cuneate, margins crenate to serrate, apices acute, faces glandular-pubescent.

mostly opposite (sometimes alternate);

petioles 2–5 mm;

blades 3-nerved from bases, ovate to reniform, 4–15 × 7–25 mm, bases cordate to subcordate, margins crenate, apices obtuse, faces pubescent, gland-dotted.

2–15 mm, tomentose, often gland-dotted.

0–2 mm, densely pubescent, gland-dotted.

narrowly cylindric, 10–13 mm.

cylindric to broadly campanulate, 9–11 mm.

9–24;

corollas pale yellow-green, 6–8.2 mm.

18–33;

corollas cream to pale yellow, often red or purple-tinged, 6–7.5 mm.

18–20 in 3–4(–5) series, green or purplish, 5–9-striate, unequal, margins scarious (apices acute, attenuate, obtuse, or nearly rounded);

outer ovate (lengths evenly grading to inner, margins ciliate, faces pubescent, often gland-dotted), inner narrowly lanceolate to linear-oblong (faces glabrous).

35–40 in 7–9 series, greenish, often purple-tinged, 3–6-striate, unequal, margins scarious (apices obtuse to acute);

outer broadly ovate to lance-ovate (puberulent; margins ciliate), inner lanceolate (glabrous).

in paniculiform arrays.

in paniculiform arrays.

2.5–4 mm, densely pubescent;

pappi of 32–43 white, mostly barbellate, sometimes subplumose, bristles.

3–4 mm, sparsely hispidulous;

pappi of 24–28 white or tawny, barbellate bristles.

= 18.