Flora of North America species comparison

ascending to erect, 13–50(–70) cm, glabrous, glaucous.

erect, 50–120 cm, glaucous.

basal and cauline, basal sometimes few, opposite, glabrous, glaucous;

basal and proximal cauline 15–60 × 2–10(–20) mm, blade obovate to oblanceolate or linear, base tapered, margins entire, apex obtuse to acute;

cauline 3–20 pairs, sessile or proximals short-petiolate, 10–90 × 2–20 mm, blade elliptic to ovate, lanceolate, or linear, base tapered to clasping or cordate-clasping, margins entire, apex obtuse to acute.

basal and proximal cauline 25–100 × (5–)10–35 mm, blade oblanceolate, base tapered, margins coarsely dentate, apex obtuse to acute;

cauline 3–5 pairs, sessile, 25–65 × 12–25 mm, blade lanceolate, base sessile, clasping or distal ones connate-perfoliate, margins coarsely dentate, apex acute.

interrupted or continuous, secund, (3–)6–31 cm, axis glabrous, verticillasters 3–10, cymes 1–3(or 4)-flowered, 2 per node;

proximal bracts ovate to lanceolate, 4–50 × 1–32 mm;

peduncles and pedicels ascending to erect, glabrous.

interrupted, secund, 20–60 cm, axis glabrous, sometimes sparsely glandular-pubescent distally, verticillasters 10–16, cymes 2- or 3-flowered;

proximal bracts lanceolate, 15–60 × 4–22 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes ovate to oblong or obovate, 2.5–6.5 × 1.4–3.2 mm, glabrous;

corolla violet to blue or purple, with or without purple nectar guides, funnelform to ventricose, 18–35 mm, glabrous externally, glabrous internally, tube 7–9 mm, throat gradually inflated, 8–10 mm diam., slightly 2-ridged abaxially;

stamens: longer pair reaching orifice or exserted, filaments glabrous, pollen sacs parallel, 1.8–3.5 mm, distal 1/3–1/2 indehiscent, sides hispidulous to pilose, hairs white, to 0.8 mm near filament attachment, sutures denticulate, teeth to 0.3 mm;

staminode 12–19 mm, included, 0.4–0.6 mm diam., glabrous;

style 16–22 mm.

calyx lobes ovate, 4–5.5 × 2–2.7 mm, glandular-pubescent;

corolla pink to rose pink, with reddish nectar guides, strongly bilabiate, ventricose to ventricose-ampliate, (27–)30–35 mm, glandular-pubescent externally, sparsely white-lanate internally abaxially, not glandular-pubescent, tube 7–10 mm, length 1.8–2 times calyx lobes, throat gradually inflated, not constricted at orifice, 10–16 mm diam., rounded abaxially;

stamens included or longer pair exserted, filaments glabrous, pollen sacs navicular, 1.2–1.5 mm, sutures smooth;

staminode 22–24 mm, exserted, 0.4–0.6 mm diam., tip recurved, distal 6–7 mm pilose, hairs yellow or golden yellow, to 2 mm;

style 18–24 mm, glabrous.

7–11 × 14–6 mm.

7–11 × 4–6 mm, glabrous.