Flora of North America species comparison

branched from above bases, ± glabrous.

branched, pubescent.

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).

opposite or alternate;

petioles 3–20 mm;

blades 3-nerved from bases, deltate to lanceolate, 10–60 × 7–50 mm, bases cordate to truncate, margins crenate-dentate, apices acute, faces sparsely to densely pubescent, gland-dotted.

0–3 mm, glabrous or glutinous.

20–50 mm, glandular-pubescent.

cylindric, 5–7 mm.

cylindric to broadly campanulate, 12–14 mm.

3–7;

corollas cream, 3.5–4.5 mm.

± 60;

corollas pale yellow, often purple-tinged, 9–10 mm.

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).

40–60 in 5–6 series, greenish, 4–6-striate, unequal, margins narrowly scarious (apices acute to acuminate);

outer narrowly lanceolate (glandular-pubescent), inner lanceolate (glabrous or tomentulose).

in (leafy) paniculiform arrays.

borne singly or in open, paniculiform arrays.

1.8–2.5 mm, scabrous;

pappi of 30–40 barbellulate bristles.

4–5 mm, hispidulous or glabrate;

pappi of 32–36 white, barbellate bristles.