Flora of North America species comparison

simple or branched among heads.

(1–3 together) usually simple, rarely branched (moderately to densely hairy, hairs translucent with purple septa).

(2–)3–4 pairs, basal and cauline (basal usually withered by flowering, petiolate or subsessile, blades ovate or nearly round to oblong-ovate, much smaller than cauline; sterile rosettes often present, proximal cauline often crowded toward stems bases); petiolate;

blades broadly to narrowly lanceolate, oblong-ovate, ovate-lanceolate, or round, 4–22 × 1–6 cm, (bases obtuse or cuneate to truncate) margins usually entire, sometimes sparsely denticulate, faces scantily to moderately pilose (hairs white), adaxial sparsely stipitate-glandular (distal cauline leaves sessile, extremely reduced, nearly linear to narrowly elliptic-lanceolate).

(2–)3–5(–6) pairs, usually crowded toward stem bases; petiolate or sessile (petioles short-winged);

blades elliptic, lanceolate, or broadly oblanceolate, 3–10 × 1–2.5 cm, margins usually entire proximal to mid blade, subentire to denticulate distally, apices acute to obtuse, faces: abaxial paler and often glabrous, adaxial slightly hairy.

turbinate to narrowly campanulate.

turbinate-campanulate (bases moderately villous, hairs brownish).

usually 0 (sometimes peripheral florets pistillate; corollas yellow, laminae rudimentary).

8–13;

corollas yellow (laminae 14–20 mm).

20–50;

corollas yellow (1 or more lobes sometimes expanded, giving appearance of laminae);

anthers yellow.

corollas yellow;

anthers dark purple.

8–20, linear to narrowly lanceolate.

11–15, lanceolate to elliptic (apices obtuse, tips blunt, callous).

(1–)3–9(–14; often nodding in bud).

1 (nodding).

brown to black, 4–7 mm, glabrous or sparsely stipitate-glandular to densely hirsute;

pappi usually stramineous, rarely tawny, bristles barbellate to ± subplumose.

brown, 5–6 mm, sparsely strigose (hairs simple, apically pointed) or glabrous;

pappi tawny, bristles barbellate.

= 38, 57, 76.

= 38, 57, 76.