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.

Mat leaves thick and firm, glabrous, entire or serrulate, short-petiolate, the blade 0.5-1.5 cm. long and 1 to 2.5 times as long as wide;

cauline leaves few and small, often bract-like, less than 1 cm. long.

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 a compact, few-flowered raceme, glandular-hairy;

calyx glabrous, 7-10 mm. long, the 5 segments thin and broadly lanceolate;

corolla blue-lavender to purple-violet, 2-3.5 cm. long, keeled along the back, glabrous outside, hairy near the base of the lower lip within;

anthers long-woolly, the pollen sacs opening wide enough to form a plane;

staminode (fertile stamen) slender, shorter than the 4 fertile filaments, long-bearded toward the tip.

Capsule 4-6 mm. long.

Capsule 8-10 mm. long