Flora of North America species comparison

ascending to erect, 20–80 cm, glabrous, sometimes ± puberulent, hairs pointed, glaucous.

ascending to erect, (5–)9–40 cm, glabrous.

basal and cauline, basal sometimes few, opposite, glabrous, sometimes proximals puberulent, hairs pointed, glaucous;

basal and proximal cauline 15–80 × 2–10 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 4–6 pairs, sessile, 20–80 × 3–9 mm, blade ovate to lanceolate, base tapered, margins entire, apex acute.

basal and cauline, glabrous;

basal and proximal cauline 15–140 × 2–27 mm, blade spatulate to oblanceolate or lanceolate, base tapered, apex obtuse to acute, sometimes rounded or mucronate;

cauline 2–4(–6) pairs, sessile, (11–)18–85 × (3–)5–28(–32) mm, blade ovate to lanceolate, base clasping or cordate-clasping, apex acuminate to acute, sometimes mucronate.

interrupted, cylindric, 5–25 cm, axis glandular-pubescent, verticillasters 4–6, cymes 1–3-flowered, 2 per node;

proximal bracts ovate to lanceolate, 4–50 × 1–8 mm;

peduncles and pedicels ascending, glandular-pubescent.

± interrupted, cylindric, (2–)5–20 cm, axis glabrous, verticillasters (2–)4–10, cymes 2–5-flowered;

proximal bracts orbiculate to ovate or lanceolate, 19–70 × 7–28 mm;

peduncles and pedicels glabrous, peduncles to 3 mm.

calyx lobes ovate to lanceolate, 3.8–6 × 1.5–2.2 mm, glandular-pubescent;

corolla violet to blue or purple, without nectar guides, ventricose to ventricose-ampliate, 25–38 mm, glandular-pubescent externally, glabrous internally, tube 7–9 mm, throat gradually inflated, 8–10 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 2.4–3.2 mm, distal 1/5–1/3 indehiscent, sides pilose to lanate, hairs white, to 0.6 mm near filament attachment, sutures denticulate, teeth to 0.2 mm;

staminode 11–15 mm, included, 0.4–0.6 mm diam., glabrous;

style 15–20 mm.

calyx lobes ovate to lanceolate, 3–7.5 × (0.8–)1.2–1.8 mm, margins entire or erose, narrowly scarious, glabrous;

corolla blue to violet, with reddish violet nectar guides, tubular-funnelform, (10–)13–15(–18) mm, glabrous externally, glabrous or sparsely white-villous internally abaxially, tube 4–6 mm, throat gradually inflated, 4–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice to slightly exserted, pollen sacs opposite, 0.7–1.2 mm, sutures papillate;

staminode 8–11 mm, reaching orifice or slightly exserted, 0.8–1.5 mm diam., tip strongly recurved, distal 3–4 mm densely villous, hairs golden yellow, to 1.5 mm, hairs on proximal part of staminode mostly along margins;

style 8–10 mm.

7–9 × 4–5 mm.

9–13 × 5–8 mm.

= 64.