Flora of North America species comparison

often highly branched, branches not notably thickened distally.

± branched, branches notably thickened distally.

1–50, erect, sometimes branched near bases, sometimes densely woolly among proximal leaves.

1–8(–12), erect, leafy, ± branched distally.

all basal-proximal (new leaves not tightly clustered);

blades spatulate to oblanceolate to linear-oblanceolate or linear, entire or with 2 teeth or lobes, sparsely to densely hairy, ± gland-dotted.

basal and cauline, entire, usually densely strigoso-canescent, ± gland-dotted;

basal leaves tightly clustered, blades spatulate to oblanceolate;

proximal cauline blades oblanceolate;

mid blades oblanceolate to linear-oblanceolate, 2.5–5 mm wide;

distal blades linear-lanceolate to linear.

12–40 cm, ± hairy.

2–13.5 cm, usually densely hairy.

5–10 × 7–12 mm.

(5–)7–10 × 8–15 mm.

12–26;

corollas 7.4–22 mm.

8–14;

corollas 11.8–17 mm.

25–180+;

corollas yellow, 2.5–3.5 mm.

25–75(–100+);

corollas yellow proximally, yellow or rarely purplish distally, 2.8–3.8 mm.

8–16, 3.8–6.6 mm, margins 0–0.2(–0.4) mm wide, sometimes to often slightly scarious, abaxial faces ± hairy.

8–11, 4–6.5 mm, margins 0–0.3 mm wide, usually scarious, abaxial faces densely hairy.

1–50 per plant, borne singly or in fastigiate arrays.

1–10(–30) per plant (1–7 per stem), borne singly or in paniculiform to corymbiform arrays.

2–3 mm;

pappi of 5–7 obovate to oblanceolate, aristate scales 1.6–2.3 mm.

2.4–3.1 mm;

pappi of 5–6 obovate, aristate scales 2.1–3.5 mm.

= 30, 60.