Flora of North America species comparison

(forming clumps) simple or branched among heads.

(often 5–10 in dense clumps) branched distally.

(2–)3(–4) pairs, mostly cauline (basal sometimes present); petiolate (petioles relatively short, broad-winged) or subsessile;

blades broadly elliptic, lance-elliptic, or narrowly to broadly lanceolate, 4–20 × 1–4 cm, margins entire or irregularly denticulate, apices acute, faces sparsely to moderately hairy (hairs relatively short to long, stipitate glands or soft, silky).

2–3 pairs, mostly cauline (basal leaves often persistent on sterile rosettes, similar to cauline leaves); petiolate (petioles narrowly to broadly winged, distal pair of leaves often reduced, connate-perfoliate);

blades ovate to ovate-lanceolate, 2–6 × 1–3 cm, margins irregularly serrate to subentire, apices acute, faces: abaxial glandular, adaxial stipitate-glandular.

hemispheric to campanulate.

turbinate-campanulate.

10–22;

corollas yellow.

5–12;

corollas yellow.

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

10–22, usually broadly lanceolate, rarely narrowly lanceolate or oblanceolate.

10–16, ovate-lanceolate.

1 or 3–7.

(1–)5–15.

grayish brown to black, 4–8 mm, mostly stipitate-glandular, sparsely hirsutulous (hairs white to brownish, simple or bifid);

pappi tawny, bristles plumose (with deep, amberlike deposits).

black, 4.5–7 mm, hairy (hairs duplex) and stipitate-glandular;

pappi white, bristles barbellate.

= 38, 57, 76, 95, 114, 133, 152.

= 57, 76.