Flora of North America species comparison

erect, sparsely pilose.

usually erect, pilose or strigose.

petiole 0.4–1.4 cm;

blade green, elliptic, 2.3–3.5 × 0.7–1 cm, apex acute, pilose.

sessile or petiolate;

petiole to 0.7 cm;

blade green, obovate or oblong, 1.5–6 × 0.4–2.5 cm, apex obtuse or acute, pilose.

heads white, subglobose, 7–11 mm diam., not subtended by 2 leaves;

bractlets white, slightly ridged abaxially, not crested.

heads yellowish white or rarely reddish, subglobose, 12–16 mm diam.;

bractlets with laciniate crests.

tube glabrous;

perianth lobes white, lanceolate, 3.2 mm, chartaceous, margins entire, apex acuminate.

tube lanate;

perianth lobes white, linear, 4.1 mm, hyaline, apex attenuate.

not seen.

1.5 mm.

not seen.

ovoid, 1.5 mm, apex truncate.