Flora of North America species comparison

branched, puberulent, gland-dotted.

branched, stipitate-glandular to glandular-pubescent.

alternate;

petioles 10–50 mm;

blades 3-nerved from bases, deltate or rhombic-ovate, 50–100 × 20–50 mm, bases acute to truncate, margins crenate or coarsely dentate, apices long-acuminate, abaxial faces sparsely villous, gland-dotted, adaxial faces glabrous or sparsely pubescent, often gland-dotted.

mostly alternate (sometimes subopposite);

petioles 0;

blades obscurely 3-nerved from bases, elliptic, lance-linear, or oblong, 9–40 × 1–15 mm, bases acute to attenuate, margins entire, apices acute or obtuse, faces pubescent to villous, often stipitate-glandular.

4–6 mm, puberulent, sparsely gland-dotted.

2–50 mm, glandular-pubescent.

cylindric to campanulate, 7–10 mm.

cylindric to campanulate, 10–20 mm.

13–20;

corollas yellowish, 5.3–6.5 mm.

25–50;

corollas pale yellow-green or cream, often purple-tinged, 5–10 mm.

22–26 in 4–7 series, 3–5-striate, unequal, margins scarious (apices obtuse to acute);

outer ovate to lanceolate (often purple-tinged, glabrous or puberulent), inner linear to oblong (greenish, glabrous).

25–35 in 4–6 series, greenish, 4–5-striate, unequal, margins scarious (sometimes ciliate, apices acute to acuminate);

outer ovate to lanceolate (gland-dotted to glandular-puberulent), inner linear-lanceolate to linear (glabrous).

in paniculiform arrays.

borne singly or in corymbiform arrays.

2–2.5 mm, sericeous;

pappi of 26–32 white, barbellate bristles.

3–7 mm, stipitate-glandular or hispidulous;

pappi of 18–25 white, barbellate to subplumose bristles.

= 18.