Flora of North America species comparison

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

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

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, 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.

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, 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.

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 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.

10–14 × 5–7 mm.

7–9 × 4–5 mm.

2–3 mm.

= 64.