Flora of North America species comparison

ascending to erect, (10–)15–57 cm, glabrous.

ascending to erect, 7–18(–24) cm, retrorsely hairy.

basal and cauline, glabrous;

basal and proximal cauline 18–180 × 5–45(–53) mm, blade spatulate to lanceolate, base tapered, apex rounded to obtuse, acute, or mucronate;

cauline 2–5 pairs, short-petiolate or sessile, 15–80 × 7–32 mm, blade obovate, ovate, oblanceolate, or lanceolate, base tapered, clasping, or cordate-clasping, apex acute to rounded or mucronate.

basal and cauline, not leathery, glabrous or sparsely retrorsely hairy on petiole and, rarely, midvein;

basal and proximal cauline petiolate, 30–55(–70) × 2–5(–8) mm, blade oblanceolate to lanceolate or linear, base tapered, margins entire or obscurely and remotely dentate, apex obtuse to acute;

cauline 3–5 pairs, short-petiolate or sessile, 17–60 × 1–5 mm, blade lanceolate to linear, base tapered to clasping, margins entire or remotely dentate, apex acute.

continuous or interrupted, cylindric, (5–)9–27 cm, axis glabrous, verticillasters (2–)4–10, cymes (1–)3–6-flowered;

proximal bracts ovate to lanceolate or oblong, 9–46 × 7–15 mm;

peduncles and pedicels glabrous, peduncles to 26 mm.

interrupted or continuous, cylindric, 2–11 cm, axis glandular-pubescent, verticillasters 3–6, cymes 2–6-flowered, 2 per node;

proximal bracts lanceolate to linear, 12–55 × 2–9 mm;

peduncles and pedicels glandular-pubescent.

calyx lobes ovate to lanceolate, (2.5–)4–7 × 1.8–2.8 mm, margins entire or erose, broadly scarious, apex acute to acuminate or caudate, glabrous;

corolla blue to violet, sometimes lavender, with or without reddish violet nectar guides, tubular-funnelform to ventricose, 12–20 mm, glabrous externally, glabrous internally or sparsely white-villous abaxially, tube 4–6 mm, throat gradually inflated, 5–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, (0.7–)1–1.5 mm, sutures smooth or papillate;

staminode 8–12 mm, reaching orifice or slightly exserted, (0.2–)0.5–2 mm diam., tip recurved, prominently bifurcate, distal 4–8 mm densely villous, hairs yellow to golden yellow, to 2.5 mm;

style 11–15 mm.

calyx lobes lanceolate, 6–8 × 1–1.4 mm, glandular-pubescent;

corolla violet to lavender or purple, with dark violet nectar guides, bilabiate, tubular-funnelform, 8–11 mm, white-lanate internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted at orifice, 3.5–4.5 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice or slightly exserted, pollen sacs opposite, explanate, 0.5–0.9 mm, dehiscing completely, sutures papillate;

staminode 6–8 mm, exserted, 0.3–0.4 mm diam., tip recurved to coiled, distal 4–5 mm densely pilose, hairs white or pale yellow, to 1 mm;

style 5–7 mm.

10–14 × 5–7 mm.

4–6 × 3–4 mm.

2–3 mm.