Flora of North America species comparison

glabrous.

densely lanate-tomentose, glabrescent (especially on adaxial faces of leaves).

1–(2–4).

single.

(thickish-turgid) progressively reduced distally; petiolate;

blades broadly lanceolate to subelliptic, 2.5–15 × 1–5 cm, bases tapered, margins sharply dentate to subentire (some teeth callous; mid leaves sometimes larger than proximal; distal leaves sessile, smaller, often clasping).

mostly basal; petiolate;

blades narrowly obovate, (2–)3–7(–10) × 1–2(–3+) cm, bases tapered, margins subentire to denticulate (cauline leaves bractlike).

± 8 or ± 13;

corolla laminae 5–12 mm.

± 13;

corolla laminae usually 8–10 mm (sometimes tubular, unexpanded, heads then perhaps technically disciform).

(± 8) ± 13 or ± 21, 5–9 mm, tips black (villous).

± 21, 8–12 mm, tips greenish (with white bristles).

of (1–)3–6 linear to filiform bractlets (lengths to 1/3 phyllaries).

of (1–)5–8+ linear to filiform bractlets (lengths 1/3–3/4 phyllaries).

(1–)4–12 in corymbiform arrays.

1(–3).

glabrous.

hairy.

= 40.