Flora of North America species comparison

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

usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose or 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 turgid) petiolate;

blades broadly ovate or lyrate (± pinnately lobed, lateral lobes 1–3 pairs, smaller than terminals), 10–30+ × 10–20+ mm, bases tapering to cuneate, ultimate margins subentire or crenate to coarsely dentate (abaxial faces tomentose).

abruptly reduced (bractlike).

gradually reduced (sessile; bractlike, entire).

inconspicuously bracteate, glabrous or densely hairy.

bracteate, irregularly tomentose.

0, 8, or 13;

corolla laminae 5–10 mm.

8–13;

corolla laminae 8–10 mm.

30–50+;

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

60–75+;

corolla tubes 2.5–4 mm, limbs 3.5–5 mm.

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

(8–)13 or 21, green, 7–10+ mm, densely tomentose proximally, glabrescent distally (tips hair-tufted).

conspicuous (bractlets often cyanic).

inconspicuous.

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

3–6 in cymiform arrays.

1.5–2 mm, glabrous;

pappi 5–6 mm.

2–2.5 mm, glabrous;

pappi 5–7 mm.

= 44, 46.

= 46.