Flora of North America species comparison

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

blade oblong-ovate to ovate, 25+ mm wide, not leathery, base lobate, margins 1- or 2-pinnatifid, teeth apices obtuse to acute, surfaces glabrous or villous;

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

strictly annual, disintegrating in 1st year;

blade broadly to narrowly lanceolate to ovate, 25+ mm wide, leathery, base cuneate, rounded, lobate, or cordate, margins crenate or incised-crenate, teeth apices acute to rounded, surfaces hairy;

basal veins extending into distal 1/2 of blade, lateral veins 3–8 on each side of midvein.

erect, to 30 cm in fruit;

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

flowers 10–40, loosely aggregated.

erect, to 47 cm in fruit;

sterile bracts 10–25, ovate to spatulate, largest 1+ cm;

flowers 100+, densely aggregated (separating in fruit).

epipetalous.

inserted on receptacle.

ovules 10–16.

ovules 17–40.

glabrous.

densely hairy.

4.

2–4, all lobes connate, if 2+ lobes, then connate for at least 1/2 of length on abaxial side.

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

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

0.