Flora of North America species comparison

usually 1, erect, branched distally or ± throughout.

lobes linear, 3–30 × 0.5–3 mm.

basal, basal and cauline, or cauline; opposite or alternate or both; petiolate or sessile;

blades simple and entire (dentate in C. latifolia), or ± pinnately or pedately lobed, faces glabrous or hairy.

5–25+ cm.

± globose to cylindric, 4–25+ mm diam.

flat to convex, paleate;

paleae falling, ovate to linear or subulate, ± flat, ± scarious (not adnate to and not falling with cypselae except in C. bigelovii).

(5–)8+;

laminae 12–20(–30) mm.

mostly (5–)8(–12+, more in “double” cultivars), neuter, or styliferous and sterile, or pistillate and fertile;

corollas usually yellow, sometimes red-brown to purple proximally, sometimes wholly purple or pink to white.

(12–)40–100+;

corollas 4–6.6 mm.

8–150+, bisexual, fertile;

corollas usually yellow, sometimes red-brown to purple at tips or throughout, tubes equaling or shorter than narrowly funnelform throats, lobes 4 or 5 (adaxial sinus seldom deeper than others).

(5–)8, lance-ovate to lanceolate, 6–10+ mm.

usually ± 8 in ± 2 series (usually distinct, rarely connate ± 1/10 their lengths, mostly oblong to linear, ± membranous, margins ± scarious).

of 3–5 ovate-deltate bractlets (3–)4–6 mm.

of (3–)8+, distinct, ± herbaceous bractlets.

radiate, borne singly or in open, ± corymbiform arrays.

obcompressed, ± orbiculate to ovate, oblong, or linear, usually thin-margined or winged, wings membranous to chartaceous or corky, entire or lobed to toothed, sometimes ciliolate;

faces smooth or ± papillate to tuberculate;

pappi 0, or persistent, of 2 bristly cusps or scales (sometimes pappi 0 and shoulders of cypsela wings ± bristly, pappus-like).

oblanceolate to linear, 5–6 mm;

pappi 3–4(–5) mm.

± oblong, 4–6 mm.

seldom basally adnate to and falling with disc cypselae.

= 14.

= 24.