Flora of North America species comparison

usually 1, erect, simple or branched near bases.

(± fleshy) basal and cauline; alternate;

petiolate (basal) or sessile;

blades palmately nerved, spatulate or oblanceolate (basal) to lanceolate or linear, margins toothed or entire, faces glabrous or glabrate.

± hemispheric, 3–6+ mm diam.

dome-shaped to conic (heights equaling or greater than diameters), smooth, epaleate.

5–13+, pistillate and fertile or neuter;

corollas yellow (laminae conspicuous).

12–60(–120+), bisexual, fertile;

corollas yellow, tubes ± cylindric, longer than or equaling campanulate to cylindric throats, lobes 5, erect to spreading, deltate to lanceolate;

style branches stigmatic in 2 lines, apices truncate-penicillate.

(veiny, often purple-tipped, each subtending a ray floret) persistent, 5–13+ in 1(–2) series, erect (reflexed in fruit), basally connate, elliptic to ovate, subequal, margins herbaceous to membranous.

0.

radiate, borne singly.

(stramineous to reddish brown) ± ellipsoid to fusiform, 5(–6)-nerved, ± papillate-hairy between nerves (papillae mucilaginous when wetted);

pappi fragile or readily falling, usually of 20–40, white, barbellulate bristles (in 1 series), sometimes 0 on ray cypselae.

= 9.