Flora of North America species comparison

glabrous.

nearly always glaucous, glabrous.

usually single.

single or clustered.

progressively reduced distally (basal and proximal withering before flowering);

petiolate (petioles purplish, weakly winged, 4–5 cm);

blades broadly triangular-ovate to suborbiculate, 2–4(–5) × 2.5–3 cm, bases truncate to ± cuneate, margins coarsely spinulose-dentate (mid leaves similar, persistent).

(thickish and turgid) progressively reduced distally;

petiolate;

blades ovate or obovate to lanceolate, 4–9(–15+) × 1.5–3(–4+) cm, bases tapered, margins wavy or subentire (often with callous denticles; mid and distal leaves sessile, bractlike).

“few”;

corolla laminae ca. 7 mm (inconspicuous, equaling or barely surpassing phyllaries).

8–10;

corolla laminae 4–10 mm.

± 13, 7–9 mm, tips green.

± 13 (± 21), 6–9 mm, tips green to brownish (not blackened).

of “few,” linear bractlets.

of 1–3+ oblong to lance-linear bractlets (less than 3 mm).

nodding, 4–6.

(3–)8–24+ in corymbiform arrays.

glabrous.

glabrous.

= 40.