Flora of North America species comparison

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

ascending to erect, 10–37 cm, pubescent to retrorsely hairy, sometimes glabrous proximally, glandular-pubescent distally, 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, or basal absent or reduced, not leathery, proximals glabrous or puberulent to scabrous, distals puberulent or scabrous to glandular-pubescent, not glaucous;

basal and proximal cauline 15–90 × 2–7(–8) mm, blade oblanceolate to linear, base tapered, margins entire, apex obtuse to acute;

cauline 6–10 pairs, short-petiolate or sessile, 9–68 × 1–5 mm, blade oblanceolate to linear, base tapered to truncate, 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.

interrupted, secund, (2–)5–14 cm, axis glandular-pubescent, verticillasters (2–)5–8, cymes 1–3-flowered, 1 or 2 per node;

proximal bracts lanceolate, proximals 8–43 × 1–3 mm;

peduncles and pedicels glandular-pubescent.

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 ovate to lanceolate, 3.5–7(–8) × 1.8–2.5 mm, glandular-pubescent;

corolla lavender to light blue or light violet, with faint reddish purple nectar guides, funnelform, (15–)16–18(–20) mm, glandular-pubescent externally, sparsely to moderately glandular-pubescent or glandular internally abaxially, tube 5.5–6.5 mm, throat gradually inflated, not constricted at orifice, 5–6 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent, navicular, 1–1.4 mm, dehiscing incompletely, proximal 1/5 indehiscent, connective not splitting, sides moderately hirsute, hairs white, to 0.7 mm, sutures denticulate, teeth to 0.1 mm;

staminode 8–10 mm, included, 0.6–0.7 mm diam., tip recurved, distal 1–3 mm sparsely pilose or lanate, hairs yellow or whitish, to 1 mm;

style 11–16 mm.

8–11 × 4–6 mm.

5–8 × 3.5–5 mm.

= 16.