Flora of North America species comparison

branched, puberulent, gland-dotted.

branched from above bases, ± glabrous.

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 0–5 mm;

blades 3-nerved from bases, lance-elliptic, lance-ovate, lance-linear, or linear (folded or falcate), 10–130 × 2–9 mm, bases rounded or tapering, margins entire or nearly so, apices acuminate, faces gland-dotted, often puberulent (shiny).

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

0–3 mm, glabrous or glutinous.

cylindric to campanulate, 7–10 mm.

cylindric, 5–7 mm.

13–20;

corollas yellowish, 5.3–6.5 mm.

3–7;

corollas cream, 3.5–4.5 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).

10–24 in 6–8 series, pale green to stramineous, 3–5-striate, unequal, (glutinous) margins scarious;

outer ovate (apices acute), inner lanceolate (apices obtuse).

in paniculiform arrays.

in (leafy) paniculiform arrays.

2–2.5 mm, sericeous;

pappi of 26–32 white, barbellate bristles.

1.8–2.5 mm, scabrous;

pappi of 30–40 barbellulate bristles.

= 18.