Flora of North America species comparison

persistent, some withering in 2d year as new leaves expand;

blade cordate to reniform, 25+ mm wide, leathery, base cordate to lobate, margins incised-crenate, teeth apices obtuse to rounded, surfaces glabrous or hairy;

basal veins extending into distal 1/2 of blade, lateral veins 2–4 on each side of midvein.

persistent, some withering in 2d year as new leaves expand;

blade reniform to orbiculate, less than 25 mm wide, chartaceous, base cordate to lobate, margins incised-crenate, teeth apices rounded, surfaces glabrous;

basal veins extending into distal 1/2 of blade, lateral veins 2–4 on each side of midvein.

decumbent, to 18 cm in fruit;

sterile bracts usually 0;

flowers 5–10, loosely aggregated.

erect, to 10 cm in fruit;

sterile bracts 3+, ovate-spatulate, largest less than 1 cm;

flowers 5–15, loosely aggregated.

epipetalous.

epipetalous.

ovules 4.

ovules 10–16.

sparsely hairy.

glabrous.

4.

4.

(3 or)4(or 5), apex entire or erose;

corolla blue, ± regular, campanulate, much longer than calyx, puberulent-villous in throat, tube conspicuous.

(3 or)4(or 5), apex entire or erose;

corolla blue, ± regular, campanulate, much longer than calyx, glabrous, tube inconspicuous.