Flora of North America species comparison

ascending, (10–)50–65(–80) cm, glabrous or puberulent to pubescent, not glaucous.

ascending to erect, 7–18 cm, retrorsely hairy.

basal and cauline, or basal absent or reduced, not leathery, glabrous or puberulent to pubescent, not glaucous;

basal and proximal cauline 20–80(–155) × 5–20(–45) mm, blade obovate to oblanceolate or lanceolate, base tapered, margins entire, usually undulate, apex obtuse to acute, sometimes mucronate;

cauline (2 or)3–6(–8) pairs, sessile, 27–120(–150) × (6–)22–35(–43) mm, blade lanceolate, base truncate to cordate, apex obtuse to acute.

basal and cauline, or basal absent or reduced, leathery, glabrous or distal cauline sometimes glandular-pubescent along margins and midvein;

basal and proximal cauline petiolate, 16–50 × 5–20 mm, blade oval to elliptic, base tapered, margins entire, apex rounded to obtuse;

cauline 2 or 3 pairs, sessile or proximals short-petiolate, 25–48 × 6–15 mm, blade oblanceolate to elliptic or lanceolate, base tapered to clasping, margins entire or obscurely serrate distally, apex obtuse to acute.

continuous, secund, (3–)6–26(–30) cm, axis glabrous or puberulent, verticillasters (3–)5–12, cymes 2–4-flowered, 2 per node;

proximal bracts ovate to lanceolate, 14–100 × 2–36 mm;

peduncles and pedicels glabrous or puberulent, peduncles to 71 mm, pedicels 4–14 mm.

continuous, cylindric, 4–7 cm, axis glandular-pubescent, verticillasters 4–6, cymes 2–6-flowered, 2 per node;

proximal bracts lanceolate, 26–36 × 5–12 mm;

peduncles and pedicels glandular-pubescent.

calyx lobes ovate to orbiculate, 2–11 × 1.3–5.5 mm, glabrous or puberulent;

corolla blue to violet, with reddish purple nectar guides, ventricose, 24–48 mm, glabrous externally, glabrous internally or sparsely to moderately white-lanate internally abaxially, tube 5–12 mm, throat gradually inflated, slightly constricted at orifice, 8–13(–18) mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent, navicular, 1.4–2.5(–2.8) mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hirsute, hairs white or tan, to 0.5 mm, rarely glabrous, sutures denticulate, teeth to 0.2 mm;

staminode (15–)18–22 mm, included or barely exserted, 0.6–1.3 mm diam., tip straight to recurved, rounded to distinctly bifurcate at apex, glabrous or distal 1–2 mm sparsely lanate, hairs pale yellow, to 1.5 mm;

style 18–20 mm.

calyx lobes lanceolate, 6.2–9 × 1.7–2 mm, glandular-pubescent;

corolla lavender to pink, with violet nectar guides, ventricose-ampliate, 28–35 mm, sparsely white-lanate internally abaxially, tube 9–13 mm, throat abruptly inflated, prominently constricted at orifice, 11–15 mm diam., rounded abaxially;

stamens: longer pair reaching orifice or exserted, pollen sacs opposite, explanate, 0.9–1.4 mm, dehiscing completely, sutures smooth;

staminode 17–20 mm, prominently exserted, 0.3–0.5 mm diam., tip recurved to coiled, distal 13–16 mm densely pilose, hairs golden yellow or orange, to 0.8 mm;

style 21–24 mm.

10–17 × 5–8 mm.

8–10 × 5–6 mm.