Flora of North America species comparison

often highly branched, branches not notably thickened distally.

± branched, branches not notably thickened distally.

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

1–20, erect or ± decumbent, sometimes branched near bases, usually densely woolly or long-hairy among proximal leaves.

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.

all basal-proximal, new leaves not tightly clustered;

blades linear-oblanceolate, oblanceolate, or spatulate, entire or basal and proximal with 2(–4) teeth or lobes, moderately to densely woolly, usually densely gland-dotted.

12–40 cm, ± hairy.

20–50 cm, moderately to densely hairy.

5–10 × 7–12 mm.

8–15 × 12–20 mm.

12–26;

corollas 7.4–22 mm.

12–24;

corollas 14–20 mm.

25–180+;

corollas yellow, 2.5–3.5 mm.

100–250+;

corollas yellow proximally, yellow to purplish distally, 3.5–3.8 mm.

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

12–16, 5.2–7.8(–10) mm, margins 0–0.2 mm wide, sometimes slightly scarious, abaxial faces ± hairy.

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

1–20 per plant, borne singly.

2–3 mm;

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

2.6–3.4 mm;

pappi of 6–7 lanceolate to obovate or oblanceolate, often aristate scales 3–4 mm.

= 90.