Flora of North America species comparison

glabrous.

glabrous or sparsely hairy.

1–(2–4).

usually multiple (arching upwards).

(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).

evenly distributed (often crowded; proximal often withering and pendulous);

sessile or ± petiolate;

blades linear-filiform, 3–12 cm × 1–3 mm, bases ± linear, margins entire.

± 8 or ± 13;

corolla laminae 5–12 mm.

± 8;

corolla laminae 8–10 mm.

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

± 13, 7–10 mm, tips green.

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

0 or of 1–3+ lance-deltate to linear bractlets (lengths to 1/4 phyllaries).

(1–)4–12 in corymbiform arrays.

5–20 in corymbiform arrays (involucres campanulate).

glabrous.

hirtellous (canescent).

= 40.

= 40.