Flora of North America species comparison

blades 3–12(–18+) cm × 10–30(–60+) mm.

cauline [rosulate]; usually alternate, sometimes opposite; petiolate or sessile;

margins usually entire or dentate, sometimes lobed to dissected.

5–8(–12+) cm.

flat to conic, epaleate (sometimes bristly-setose).

30–50(–100+);

corolla laminae 12–20+ mm.

in 1–2+ series (more in horticultural “doubles”), pistillate, fertile [styliferous and sterile or neuter];

corollas usually yellow to orange and/or cyanic to white (abaxial and adaxial faces often different colors).

(30–)60–150+;

corollas (4–)5–6+ mm.

usually functionally staminate, sometimes bisexual and fertile;

corollas yellow, orange, or cyanic (sometimes combinations within corollas), lobes 5, ± deltate (tips sometimes terete or dilated);

anther bases ± tailed, apical appendages ovate to deltate;

styles abaxially papillate (at least near tips), branches sometimes barely discernible (0.5–1 mm), adaxially stigmatic in 2 lines from bases to apices, apices rounded to truncate, appendages penicillate or essentially none.

12–40+, (8–)10–12+ mm.

persistent, in (1–)2(–3) series, distinct [connate], usually ± equal, usually herbaceous (sometimes fleshy), margins and/or apices ± scarious.

0 (peduncular bractlets sometimes intergrade with phyllaries).

heterogamous (radiate), borne singly or in ± corymbiform arrays.

9–15(–25+) mm.

usually polymorphic within heads (straight, arcuate, contorted, or ± coiled), ± columnar to prismatic, sometimes obcompressed, compressed, or flattened, sometimes ± beaked, bodies usually tuberculate, ridged, and/or winged (usually glabrous; blue-black and drupelike in Chrysanthemoides);

pappi 0 [bristles].

= 14, 32.