Flora of North America species comparison

branched, pubescent, gland-dotted.

(ascending) branched, pubescent, sometimes glandular-pubescent.

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.

alternate;

petioles 4–10 mm;

blades 3-nerved from bases, rhombic-ovate, 10–40 × 10–20 mm, bases cuneate, margins laciniate-dentate, apices acute to obtuse, faces glabrate or gland-dotted.

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

5–40 mm, pubescent.

narrowly cylindric, 10–13 mm.

narrowly campanulate, 7–11 mm.

9–24;

corollas pale yellow-green, 6–8.2 mm.

16–17;

corollas cream, 6–7 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 5–7 series, 3–5-striate, unequal, (glabrous, ± chartaceous) margins narrowly scarious (apices acute to acuminate);

outer ovate, inner lanceolate.

in paniculiform arrays.

in dense, paniculiform arrays.

2.5–4 mm, densely pubescent;

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

2–3 mm, pubescent;

pappi of 18–24 white, barbellate bristles.

= 18.