Flora of North America species comparison

branched from above bases, ± glabrous.

branched, stipitate-glandular to glandular-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).

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.

0–3 mm, glabrous or glutinous.

2–50 mm, glandular-pubescent.

cylindric, 5–7 mm.

cylindric to campanulate, 10–20 mm.

3–7;

corollas cream, 3.5–4.5 mm.

25–50;

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

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 (leafy) paniculiform arrays.

borne singly or in corymbiform arrays.

1.8–2.5 mm, scabrous;

pappi of 30–40 barbellulate bristles.

3–7 mm, stipitate-glandular or hispidulous;

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