Flora of North America species comparison

ascending to erect, 14–40(–60) cm, glabrous.

ascending to erect, 20–95 cm, retrorsely hairy, hairs pointed, not glaucous.

basal and cauline, glabrous;

basal and proximal cauline 40–65(–110) × 8–20(–30) mm, blade obovate, base tapered, apex obtuse to acute, sometimes mucronate;

cauline 2–4 pairs, sessile, (9–)12–60 × 7–26 mm, blade lanceolate to ovate or elliptic, base tapered to clasping or cordate-clasping, apex obtuse to acute, sometimes mucronate.

cauline, opposite or subopposite, glabrate or retrorsely hairy, not glaucous;

cauline 5–13 pairs, short-petiolate or sessile, 13–70 × 5–30 mm, blade ovate to lanceolate, base tapered, margins laciniate-dentate to irregularly laciniate-pinnatifid, apex obtuse to acute.

interrupted or ± continuous, secund, sometimes cylindric, 5–23 cm, axis glabrous, verticillasters 4–8, cymes 1–3(or 4)-flowered;

proximal bracts ovate to lanceolate, (3–)7–38 × (1–)2–18 mm;

peduncles and pedicels glabrous, peduncles to 28 mm.

interrupted, cylindric, 2–25(–48) cm, axis densely glandular-pubescent, verticillasters 3–7(–15), cymes 2–7-flowered, 1 or 2 per node;

proximal bracts lanceolate, 7–43 × 2–16 mm;

peduncles and pedicels spreading, sparsely to densely glandular-pubescent.

calyx lobes ovate to lanceolate, 5–6.7(–7.2) × 2–3(–3.7) mm, margins entire or erose, broadly scarious, glabrous;

corolla lavender to violet, blue, pinkish blue, or white, with or without reddish violet nectar guides, tubular-funnelform, 17–20(–22) mm, glabrous externally, sparsely white-villous internally abaxially or glabrous, tube 5–8 mm, throat gradually inflated, 5–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, 1.1–1.6 mm, sutures papillate;

staminode 8–9 mm, reaching orifice or slightly exserted, 0.6–1 mm diam., tip strongly recurved, distal 3–4 mm sparsely to densely villous, hairs mostly along margins, yellowish, to 1 mm;

style 10–12 mm.

calyx lobes ovate to lanceolate, 4–7 × 1.3–2.3 mm, glandular-pubescent;

corolla bluish to lavender, or pinkish, with reddish purple nectar guides, ventricose-ampliate, 15–32 mm, glandular-pubescent externally, glabrous internally or sparsely to moderately white-lanate abaxially, tube 7–12 mm, throat gradually inflated, 5–14 mm diam., rounded abaxially;

stamens: longer pair reaching orifice or exserted, filaments glabrous, pollen sacs parallel, 1.3–2 mm, distal 1/2 indehiscent, sides glabrous, sutures denticulate, teeth to 0.2 mm;

staminode 16–23 mm, exserted, 0.3–0.8 mm diam., glabrous or distal 2–8 mm sparsely lanate, hairs yellow, to 2 mm;

style 11–23 mm.

9–12 × 5–7 mm.

5–9 × 4–5 mm.

3.5–5 mm.

= 16.