Flora of North America species comparison

1 or 3–5, clustered (often scapiform), usually floccose, lanate-tomentose, or canescent, sometimes glabrate.

1 or 3–4+, clustered, sparsely tomentose to glabrescent.

(either of two forms): usually (1) sessile, sometimes petiolate;

blades narrowly lanceolate to elliptic, 15–40+ × 5–25 mm, bases tapering, margins entire or dentate toward apices (often revolute), sometimes (2) petiolate;

blades ovate to orbiculate, 10–20 × 5–15 mm, bases tapering to abruptly contracted, margins entire or wavy, sometimes dentate toward apices.

(and proximal cauline, relatively thick and turgid) petiolate;

blades narrowly elliptic or lanceolate to oblanceolate, 40–70+ × 5–20+ mm, bases tapering, margins entire or subentire to weakly and irregularly dentate (especially at apices).

abruptly reduced (bractlike).

gradually reduced (distal sessile, bractlike).

inconspicuously bracteate, glabrous or densely hairy.

bracteate (bractlets usually red-tipped), sparsely tomentose to glabrate.

0, 8, or 13;

corolla laminae 5–10 mm.

5 or 8;

corolla laminae 12–16 mm.

30–50+;

corolla tubes 2.5–3.5 mm, limbs 3–4 mm.

50–60+;

corolla tubes 3.5–4.5 mm, limbs 4.5–5.5 mm.

13 or 21, green (tips sometimes cyanic), 4–10 mm, glabrous or hairy.

13 or 21, dark green proximally, becoming light green distally (tips red), 7–11+ mm, floccose-tomentose proximally.

conspicuous (bractlets often cyanic).

conspicuous (bractlets red-tipped).

1–5(–8) in cymiform to subumbelliform arrays.

5–12+ in open, cymiform arrays.

1.5–2 mm, glabrous;

pappi 5–6 mm.

2.5–3.5 mm, glabrous;

pappi 7–8 mm.

= 44, 46.

= 92.