UW Burke Herbarium species comparison

Leaves basal and cauline, basal leaves occasionally deciduous by flowering;

petioles 3-5 mm from base to mid-stem, becoming sessile and nearly clasping to perfoliate distally;

blade commonly somewhat purple, narrowly ovate to ovate to elliptic to nearly orbicular, 10-35 mm long and 3-25 mm broad, palmate venation with 3-5 veins, base rounded to wedge or nearly heart-shaped, margins more or less crenate or nearly serrate with 5-10 teeth per side, basal and lower cauline leaves irregularly incised near base becoming nearly lyrate;

apex acute to obtuse-rounded, surfaces glabrous or with sparse to moderate coverage of small rigid hairs, eglandular.

Leaves opposite, remotely toothed, pinnately veined, sessile or short-petiolate, the blade ovate to elliptic-ovate, 1-8 cm. long and 7-35 mm. wide.

Axillary flowers 1-8, emerging from nodes towards ends of stems; fruiting pedicels 8-30 mm, hairy-glandular as stems;

calyx nodding at 30-90 degrees, occasionally somewhat reddish or red-dotted, ovoid-campanulate to widely cylindric-campanulate, inflated, compressed across sagittal plane, usually 9-16 mm, hirtellous or glabrous, throat closing weakly or strongly;

corollas yellow to dark yellow to orangish yellow, typically with red spots, lower limb occasionally with large red splotch, symmetric bilaterally, bilabiate;

tube-throat widely funnel-shaped, 8-16 mm, protruding 2-6 mm beyond calyx margin;

limb expanded 8-25 mm, palate villous;

styles slightly hirtellous;

anthers not protruding, glabrous.

Flowers solitary in the leaf axils on long pedicels;

calyx 7-13 mm. long, viscid-villous, especially on the 5 rib angles, the 5 teeth pointed, 2-4 mm. long, the upper tooth a little larger than the others;

corolla 1.5-3 cm. long, yellow, often with some dark lines or dots, only slightly bilabiate, the tube nearly cylindrical;

stamens 4.

Capsules 6-9 mm, included.

Capsule.