Flora of North America species comparison

ascending to erect, 10–27 cm, retrorsely hairy or puberulent, not glaucous.

glabrous or retrorsely hairy, sometimes glandular-pubescent distally, glaucous or not.

persistent, 6–9 pairs, distals usually distinctly smaller than proximals, short-petiolate or sessile, 15–55 × 4–16 mm, blade elliptic, base tapered, margins subentire or serrate, apex rounded to obtuse or acute, glabrous, ± glaucous.

cauline, opposite, rarely subopposite (P. lyallii), leathery, sometimes not (P. lyallii, P. personatus), glabrous or hairy, glaucous or not;

cauline petiolate, short-petiolate, or sessile, blade round, orbiculate, ovate, obovate, lanceolate, oblanceolate, spatulate, elliptic, or oblong, rarely linear, margins entire or toothed.

± interrupted, secund, 5–14 cm, axis retrorsely hairy proximally, retrorsely hairy and glandular-pubescent distally, verticillasters 3–7, cymes 1-flowered;

proximal bracts ovate to lanceolate, 6–18 × 3–12 mm, margins serrate, sometimes entire;

peduncles and pedicels ascending to erect, glandular-pubescent, sometimes also puberulent.

continuous or interrupted, ± secund, rarely cylindric or conic, axis hairy, rarely glabrous, cymes 2 per node;

peduncles and pedicels spreading or ascending to erect.

calyx lobes ovate to lanceolate, 8–14 × 2–3.1 mm, glandular-pubescent;

corolla purple to violet, essentially unlined internally but abaxial ridges usually light purple or white, not personate, funnelform, (25–)30–38 mm, glabrous externally, sparsely white-lanate internally abaxially, tube 6–8 mm, throat 9–10 mm diam.;

stamens included, pollen sacs 1.5–1.7 mm;

staminode 11–13 mm, essentially terete distally, 0.1 mm diam., tip straight, distal 4–6 mm moderately to densely villous, hairs white or yellowish, to 1.5 mm;

style 25–29 mm.

calyx lobes: margins entire or erose, ± scarious or herbaceous, glandular-pubescent, rarely glabrous or inconspicuously glandular;

corolla lilac, lavender, blue, violet, purple, pink, red, scarlet, or white, bilaterally symmetric, strongly bilabiate, personate or not, funnelform, rarely tubular-funnelform, glabrous externally, rarely glandular-pubescent, hairy internally abaxially, rarely glabrous, throat gradually inflated, not constricted at orifice, 2-ridged abaxially;

stamens included or longer pair exserted, filaments glabrous, pollen sacs opposite;

staminode 0.1–0.4 mm diam., tip straight to recurved, glabrous or distal 10–50% hairy, hairs to 1.5 mm;

style glabrous.

8–11 × 4–6 mm.

glabrous.

brown, 0.8–4 mm.

= 16.