Flora of North America species comparison

± branched, branches notably thickened distally.

± branched, branches notably thickened distally.

(1–)5–20(–30), erect, leafy, ± branched distally.

1–10, erect, unbranched.

basal and cauline, entire, glabrous or sparsely to moderately lanuginose to sericeous, usually densely gland-dotted;

basal leaves tightly clustered, blades linear-oblanceolate;

proximal cauline blades linear-oblanceolate;

mid blades linear-oblanceolate to linear, 1.7–2 mm wide;

distal blades linear-oblanceolate to linear.

all basal, new leaves tightly clustered;

blades spatulate or oblanceolate to linear-oblanceolate, entire, glabrous or sparsely to rarely moderately hairy, moderately to densely gland-dotted.

5–18.5 cm, ± hairy, usually densely hairy distally.

5–35 cm, ± hairy proximally, densely hairy distally.

8–12 × 13–17 mm.

10–15 × 12–20 mm.

7–10;

corollas 10–20 mm.

14–27;

corollas 11.8–20 mm.

(40–)80–150+;

corollas yellow, 3.3–4.5 mm.

50–100+;

corollas yellow, 3.4–4 mm.

7–12, 5–6.4 mm, margins 0–0.3(–0.4) mm wide, usually scarious, abaxial faces ± hairy.

8–12, 5–7.5 mm, margins 0–0.2 mm wide, sometimes slightly scarious, abaxial faces ± hairy.

(1–)5–30(–40) per plant (1–5 per stem), borne singly or in paniculiform to corymbiform arrays.

1–10 per plant, borne singly.

3–4.1 mm;

pappi of 5–7 lanceolate or obovate to oblanceolate, aristate scales 2.7–4.5 mm.

2.4–3.4 mm;

pappi of 4–7 obovate, usually non-aristate scales 1.9–2.2 mm.

= 28, 30, 56, 60.

= 28.