UW Burke Herbarium species comparison

Leaves cauline, basal ones not persistent;

petioles 8-25 mm;

blade deltate or somewhat ovate to lanceolate, approximately 4-12 mm long and 3-10 mm broad, palmate venation with 3 veins, base rounded to cuneate-truncate, margins usually finely toothed, apex acute to obtuse, surfaces glabrous as stems.

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 1-10, emerging from nodes throughout; fruiting pedicels 10-25 mm, glandular as stems;

calyx tubular, barely or not inflated, 5-6 mm, margins with distinct teeth or lobes, slightly stipitate-glandular to sparsely hirtellous, lobes pronounced, erect;

corollas yellow, lower limb commonly with some red or brownish dots, symmetric radially or bilaterally, regular or weakly bilabiate;

tube-throat funnel-shaped, 7-8 mm, protruding beyond calyx margin;

lobes oblong, apex rounded to truncate;

styles glabrous;

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 4-6 mm, included.

Capsule.