Flora of North America species comparison

ascending to erect, 15–55(–82) cm, glabrous.

erect, 15–45(–60) cm, glabrous, glaucous.

basal and cauline, glabrous;

basal and proximal cauline 19–116(–150) × 3–23(–31) mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse, acute, or mucronate;

cauline 3–9 pairs, sessile, 20–95 × 10–30 mm, blade ovate to lanceolate, base clasping to cordate-clasping, apex acute.

basal and cauline, opposite, hirsute, hairs pointed, not glaucous;

basal and proximal cauline 15–30(–60) × 4–10(–14) mm, blade ovate to elliptic, base tapered, margins entire, apex rounded to acute;

cauline 2 or 3 pairs, petiolate or sessile, 8–25(–45) × 1–3 mm, blade spatulate to oblanceolate or linear, base tapered, margins entire, apex rounded to acute.

interrupted, cylindric, (4–)10–35(–57) cm, axis glabrous, verticillasters 4–20(–35), cymes (2 or)3–5(–11)-flowered;

proximal bracts orbiculate to ovate, 15–70 × 5–31 mm;

peduncles and pedicels glabrous.

interrupted, cylindric, 4–24 cm, axis glandular-pubescent, verticillasters 2–4, cymes 1–4-flowered, 1 or 2 per node;

proximal bracts subulate to lanceolate or linear, 4–35 × 1–3 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes ovate, 3.5–6 × 1.5–2.5 mm, margins entire or erose, broadly scarious, glabrous;

corolla lavender to bluish lavender or pinkish blue, with reddish or reddish purple nectar guides, tubular-funnelform, (12–)14–20 mm, glabrous externally, glabrous internally, tube 5–7 mm, throat gradually inflated, 4–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, 0.8–1.2 mm, sutures papillate;

staminode 7–9 mm, included or reaching orifice, 0.8–0.9 mm diam., tip recurved, distal 3–5 mm moderately to densely villous, hairs golden yellow, to 1.5 mm;

style 9–11 mm.

calyx lobes oblong to ovate, 3–4.5(–5) × 0.9–2 mm, glandular-pubescent;

corolla lavender to violet or purple, with or without faint reddish purple nectar guides, ventricose, 25–34 mm, glandular-pubescent externally, yellow-lanate internally abaxially, tube 6–9 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs nearly parallel, 1.4–1.5(–1.7) mm, distal 1/2 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 15–19 mm, included, 0.2–0.3 mm diam., distal 4–8 mm sparsely pilose, hairs yellow, to 0.7 mm;

style 20–29 mm.

12–18(–20) × 7–11 mm.

6–10 × 4–6 mm.

= 16.

= 16.