Flora of North America species comparison

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

ascending to erect, 16–60 cm, retrorsely hairy, not glaucous.

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.

basal and cauline, not leathery, glabrous or proximals sometimes puberulent proximally, not glaucous;

basal and proximal cauline 35–110 × 5–22 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse;

cauline 3–7 pairs, sessile, 20–95 × 4–16 mm, blade oblanceolate to elliptic or oblong, base tapered, apex obtuse to acute.

± 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, cylindric, 4–13 cm, axis puberulent, verticillasters 3–8, cymes (1 or)2–4-flowered, (1 or)2 per node;

proximal bracts lanceolate, proximals 7–55 × 1–15 mm;

peduncles and pedicels puberulent.

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 lanceolate to oblanceolate, 3–5.5 × 1.5–2.2 mm, glabrous or sparsely puberulent;

corolla lavender to violet, with violet nectar guides, ventricose, 16–25 mm, glabrous externally, sparsely white-lanate internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted at orifice, 6–8 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs opposite, navicular, 1.2–1.5 mm, dehiscing completely or incompletely, connective splitting or not, sides glabrous, sutures smooth or papillate;

staminode 9–14 mm, exserted, 0.7–1 mm diam., tip straight to recurved, distal 0.5–2 mm sparsely to moderately pilose, hairs yellow, to 0.8 mm;

style 10–14 mm.

8–11 × 4–6 mm.

9–12 × 4.5–8 mm.

= 16.