Flora of North America species comparison

usually 1, erect, branched distally or ± throughout.

basal and cauline on proximal 1/4–1/3(–1/2) of plant heights;

petioles 1–5(–8+) cm;

blades simple or with 1–2+ lateral lobes, simple blades or terminal lobes lance-ovate or lanceolate to oblanceolate or lance-linear, 5–12 cm × 8–15(–18+) 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.

(8–)12–20(–35+) 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).

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.

yellow, 15–30+ mm.

6–7.5 mm, apices yellow.

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).

deltate to lance-deltate, 8–12+ mm.

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

of lance-ovate to lance-linear or linear bractlets 4–8(–12) mm.

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

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

(2.6–)3–4 mm, wings ± spreading, ± chartaceous, entire.

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).

nodes proximal to first peduncle usually 1–3(–5+), distalmost 1–3 internodes 1–2(–8+) cm.

= 14.

= 26 (+ 0–4B).