Flora of North America species comparison

decumbent to erect.

blades (2–)10–30+ mm, initially cobwebby, glabrescent, often gland-dotted.

basal and/or cauline; opposite (crowded, seemingly whorled);

subsessile or ± petiolate;

blades spatulate to oblanceolate, entire.

discoid, in clusters (of 2–5, congested, total heads to 100+).

cylindric to obconic, 2(–4) mm diam.

minute, epaleate.

0.

2(–3), bisexual, fertile;

corollas white, pink, or purple, tubes slightly shorter than funnelform throats, lobes 5, deltate-ovate.

5–6 mm.

2(–3) in 1 series (basally distinct or connate, oblong, herbaceous).

2–3 mm;

pappi 3–4 mm (bristles falling together).

cylindric to clavate, striate, glabrous;

pappi falling, of ca. 20 basally connate, setiform to subulate, ± plumose scales (or flattened bristles).

= 7.

= 14.