Flora of North America species comparison

branched from bases, pubescent.

much branched from near bases, tomentose, gland-dotted.

opposite;

petioles 1–5 mm;

blades 3-nerved from bases, oblong, obovate, or ovate, (15–)30–80 × 10–35 mm, bases cordate or truncate, margins crenate-serrate, apices acute to obtuse, faces sparsely pubescent and gland-dotted.

alternate;

petioles 0–1 mm;

blades obscurely 3–5-nerved from bases, ovate to cordate, 7–11 × 3–8 mm, bases rounded to subcordate, margins dentate-serrate, apices obtuse, faces tomentose, gland-dotted.

2–15 mm, hispid to hirsute.

1–5 mm, tomentose.

cylindric to narrowly campanulate, 8–12 mm.

cylindric to turbinate, 10–12 mm.

10–16;

corollas purplish, 7–9 mm.

20–24;

corollas pale yellow or cream, often purple-tinged, 6.2–7.5 mm.

17–20 in 3–5 series, pale green, often purplish, 5–9-striate, unequal, margins narrowly scarious-ciliate (apices acute to acuminate);

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

30–38 in 6–7 series, greenish, often red- or purplish-tinged, 3–6 striate, unequal, (recurved, tomentose, gland-dotted) margins scarious (ciliate, apices acute to acuminate);

outer lance-ovate, inner lanceolate.

erect, usually in loose, paniculiform arrays, sometimes borne singly.

(terminating elongate lateral branches) in paniculiform arrays.

3–4 mm, densely pubescent to velutinous;

pappi of 40–52 white, barbellate bristles.

3.5–5 mm, hispidulous;

pappi of 18–24 white or tawny, barbellate bristles.

= 18.

= 18.