Flora of North America species comparison

usually 1, erect, branched distally or throughout, hirsute to hispid or setose (hair tips 2–4-hooked).

blades 50–150(–250) × 10–50(–80+) mm.

basal and cauline;

basal ± petiolate, distal sessile;

blades elliptic, lanceolate, oblanceolate, oblong, or ovate, margins usually dentate to pinnately lobed (faces hirsute to hispid, hair tips 2–4-hooked).

1–5+ cm, bristly hispid.

(terminal and axillary) not inflated distally, seldom bracteate.

ovoid to urceolate, 9–12+ mm diam. (larger in fruit).

flat, pitted, glabrous, epaleate.

30–60+;

corollas yellow (often reddish abaxially).

often sigmoid in fruit, abaxial faces and tips bristly.

(5–)8–13+ in 1 series, lance-linear to linear, subequal, margins little, if at all, scarious, apices acuminate.

bracts 9–15+ × 3–5+ mm, margins and tips bristly-ciliate.

of (3–)5, cordate or ovate to lance-ovate, foliaceous bracts.

borne singly or in loose, corymbiform arrays.

bodies 2.5–3 mm, beaks 2.5–5 mm;

pappi 4–7 mm.

(dimorphic): outer whitish, bodies gibbous, ribs 5–10, beaks about equaling bodies, fragile, faces hirtellous to pilosulous adaxially;

inner reddish brown, bodies ± compressed-ellipsoid to fusiform, beaks about equaling or longer than bodies, fragile, faces transversely rugulose to muricate, otherwise glabrous;

pappi persistent, of 10–15+, whitish, subequal, barbellate or plumose, subulate to setiform (basally connate) scales in 1–2 series.

= 5.

= 10.