Flora of North America species comparison

glabrous, densely stipitate-glandular.

erect, simple, hairy and/or ± densely stipitate-glandular.

basal blades linear to spatulate, 30–85 × 3–12 mm;

cauline blades oblong to broadly lanceolate, 12–37 × 3–9(–12) mm, gradually reduced distally; 3–5-nerved, margins entire, eciliate, stipitate-glandular, faces stipitate-glandular.

basal and cauline; alternate; petiolate (basal and cauline) or sessile (cauline);

basal blades 1-, 3-, or 5-nerved, linear to broadly spatulate;

cauline progressively reduced distally (bases ± clasping), margins entire, coarsely and irregularly serrate, dentate, or lobed, sometimes ciliate, faces glabrous or scabrous, eglandular or stipitate-glandular.

2–5 mm.

broadly campanulate, 11–22 × 8–11 mm.

narrowly to broadly campanulate, (5–28 ×) 6–20 mm.

convex, pitted, epaleate.

11–23;

laminae elliptic, 6.5–8 × 1–3.5 mm.

0, or 10–23(–35), pistillate, fertile;

corollas yellow (tubes sparsely hairy, laminae narrowly elliptic, coiling at maturity).

27–56;

corollas narrowly funnelform, 5.5–8.5 mm, scarcely exceeding involucres, lobes erect to spreading, 0.6–0.8 mm, lengths 1/10–1/5 corollas;

anthers 2–2.5 mm;

style-branch appendages lanceolate, 0.7–1 × 0.2–0.3 mm, stigmatic lines 0.9–1.4 mm.

13–66, bisexual, fertile;

corollas yellow, tubes (glabrous or sparsely hairy) shorter than narrowly funnelform to ± ampliate throats, lobes 5, erect or spreading, deltate to broadly lanceolate;

style-branch appendages subulate to lanceolate.

18–42, in 3–4(–5) series, , 1- or weakly 3-nerved, ± equal, margins eciliate;

outer and mid oblong to broadly lanceolate, 5.2–9.5 × 1–3.5 mm, stipitate-glandular, apices acute;

inner green or anthocyanic, linear, 8–13 × 1–2 mm, chartaceous proximally, margins scarious, fimbriate and/or stipitate-glandular distally, apices acute to acuminate, sometimes reflexed, faces stipitate-glandular distally.

16–34(–44) in 3–4(–5) series, usually green, sometimes anthocyanic, 1- or weakly 3–5-nerved (flat), equal to unequal, sometimes chartaceous proximally, margins ciliolate or eciliate, faces often stipitate-glandular at least distally;

outer ovate, oblong, or broadly lanceolate, often foliaceous (apices rounded, obtuse, or acute);

inner linear to narrowly oblong, margins scarious, fimbriate (apices acute to acuminate, sometimes reflexed), faces sometimes stipitate-glandular distally.

1(–2).

radiate or discoid, in usually racemiform, sometimes corymbiform arrays.

linear, 2.5–5.5 mm, 8–12-nerved, faces glabrous or sparsely hairy distally;

pappus bristles 35–52, flexible.

cylindric to linear, terete, 4–12-nerved, faces glabrous or villous;

pappi persistent, of 30–60 whitish, ± equal, brittle or flexible, fine, barbellate, apically attenuate bristles in 1 series (± equaling corollas).

= 9.

= 18.