Flora of North America species comparison

nearly always glaucous, glabrous.

tomentose, unevenly glabrescent.

single or clustered.

single.

(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).

reduced distally;

petiolate;

blades oblanceolate to elliptic, 4–12x 1–4 cm, bases tapered, margins weakly dentate or denticulate (denticles callous; mid leaves similar, smaller; distal leaves bractlike).

8–10;

corolla laminae 4–10 mm.

± 13;

corolla laminae 6–10 mm.

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

(± 13) ± 21, 3–7 mm, tips black or brownish.

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

of 1–5 bractlets (longest 2–3 mm).

(3–)8–24+ in corymbiform arrays.

(3–)5–24 in corymbiform arrays.

glabrous.

usually hairy, sometimes glabrous.

= 40.

= 40.