Flora of North America species comparison

ascending to erect, 3–16 cm, puberulent to pubescent, not glaucous.

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

persistent, 3–8 pairs, distals usually distinctly smaller than proximals, short-petiolate or sessile, 4–22 × 3–14 mm, blade round to elliptic or spatulate, base tapered to cuneate, margins ± serrate, apex rounded to obtuse, rarely acute, glabrous or hairy, usually 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.

continuous, ± secund, 1–3 cm, axis hairy proximally, pubescent or glandular-pubescent distally, verticillasters 1–3, cymes 1-flowered;

proximal bracts elliptic to ovate, 3–9 × 2–6 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

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 lanceolate-elliptic to oblong, 6–11 × 2–2.8 mm, glandular-pubescent;

corolla pink to red, pinkish lavender, or rose red, essentially unlined internally but abaxial ridges usually white, not personate, funnelform, 25–36 mm, glabrous externally, glabrous internally or sparsely white-lanate abaxially, tube 8–12 mm, throat 6–8 mm diam.;

stamens: longer pair exserted, pollen sacs 1–1.5 mm;

staminode 13–15 mm, slightly flattened distally, 0.1 mm diam., tip straight, glabrous or distal 1–2 mm sparsely villous, hairs yellow, to 0.8 mm;

style 26–30 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.

7–9 × 5–7 mm.

glabrous.

brown, 0.8–4 mm.

= 16.