UW Burke Herbarium species comparison

Basal leaves opposite, clustered, petiolate, with ovate to sub-cordate blade up to 10 cm. long and half as wide, about equaling the petiole, serrate, hairy like the stem, especially along the mid-vein beneath;

cauline leaves sessile and clasping, more sharply serrate, nearly as large, but more broadly oblong, the upper ovate.

Leaves opposite, entire or with a few teeth, up to 13 cm. long and 2 cm. wide.

Inflorescence large and open, strongly glandular-hairy;

calyx 3-5 mm. long, broadly lanceolate, with parallel veins;

corolla blue, 15-22 mm. long, glandular-hairy on the outside, the raised portion of the lower petal pale blue and hairy;

corolla strongly bilabiate, the lower lip much the longer;

pollen sacs 0.8-1.1 mm. long, fully dehiscent and becoming opposite, nearly glabrous;

staminode bearded toward the recurved tip.

Inflorescence of several verticillasters;

calyx elongate, 7-13 mm. long, the 5 segments narrowly lanceolate, wholly herbaceous;

corolla covered with stalked glands, lavender to reddish-purple or deep bluish-purple, 2-4 cm. long, inflated, 6-14 mm. wide at the mouth, the lower lip the longer; raised portion of the lower lip strongly bearded;

pollen sacs glabrous, 1.1-1.8 mm. long, wholly dehiscent, becoming opposite;

staminode exerted, the tip slightly expanded, long-bearded most of its length;

ovary glandular-puberulent near the tip.

Capsule 4-6 mm. long.

Capsule 7-12 mm. long.