Flora of North America species comparison

branched, puberulent, gland-dotted.

branched from near bases, 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.

alternate;

petioles 5–60+ mm;

blades 3-nerved from bases, ovate to deltate, 10–100 × 10–90 mm, bases cordate to truncate, margins crenate to serrate, apices acute to rounded, faces puberulent to glabrate, often gland-dotted.

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

1–5 mm, glandular-pubescent.

cylindric to campanulate, 7–10 mm.

cylindric to obconic, 7–12 mm.

13–20;

corollas yellowish, 5.3–6.5 mm.

8–12;

corollas pale yellow-green, 5.5–8 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).

21–35 in 5–6 series, greenish, often purple-tinged, 3–4-striate, unequal, margins scarious;

outer ovate to lance-ovate (glabrous or sparsely glandular-pubescent, apices acute to acuminate), inner lanceolate (glabrous, apices obtuse to acuminate).

in paniculiform arrays.

borne in (leafy) paniculiform arrays.

2–2.5 mm, sericeous;

pappi of 26–32 white, barbellate bristles.

2.5–3.5 mm, puberulent;

pappi of 24–30 white, barbellate bristles.

= 18.

= 18.