Flora of North America species comparison

ascending to erect, (20–)35–80 cm, retrorsely hairy and glandular-pubescent, sometimes only glandular-pubescent distally, not glaucous.

ascending to erect, (5–)8–23 cm, glabrous, not glaucous.

basal and cauline, not leathery, sparsely to densely pubescent, rarely glabrate;

basal and proximal cauline 28–170 × 11–42 mm, blade orbiculate to obovate or elliptic, base tapered, margins irregularly crenate to irregularly serrate, apex rounded to obtuse;

cauline 3–7 pairs, sessile or proximals short-petiolate, 28–170 × 9–40 mm, blade oblanceolate to lanceolate, proximals usually ± lyrate, base clasping or tapered, margins crenate to serrate, apex obtuse to acute.

cauline, opposite, glabrous abaxially, glabrate or retrorsely hairy adaxially, hairs appressed, white, scalelike, not glaucous;

cauline 2–6 pairs, sessile or proximals short-petiolate, 13–70 × (3–)7–17 mm, blade elliptic to lanceolate, base tapered, margins entire, apex obtuse to acute.

interrupted, conic, (5–)8–23 cm, axis ± pubescent and glandular-pubescent, verticillasters 3–6, cymes 5–13-flowered, 2 per node;

proximal bracts lanceolate, 8–60 × 2–20 mm, margins entire or ± crenate to serrate;

peduncles and pedicels spreading to ascending, ± pubescent and glandular-pubescent.

continuous, cylindric, (1–)2–12 cm, axis glabrous, verticillasters (2 or)3–7, cymes 3–5-flowered, 2 per node;

proximal bracts lanceolate, 14–45 × 2–12 mm;

peduncles and pedicels ascending to erect, glabrous or pedicels ± puberulent, hairs appressed, white, scalelike.

calyx lobes lanceolate, 3.2–6(–7) × 1.4–1.8(–2) mm, sparsely to moderately glandular-pubescent;

corolla lavender to purple, with lavender or purple nectar guides, ventricose, 20–30 mm, glandular-pubescent externally, ± white-pubescent internally abaxially, tube (4–)5–8(–10) mm, throat abruptly inflated, 5–8 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1–1.5 mm, dehiscing completely, connective splitting, sides glabrous, rarely sparsely pubescent, hairs white, to 0.2 mm, sutures papillate;

staminode (11–)14–22 mm, exserted, 0.5–0.7 mm diam., tip straight to slightly recurved, distal (7–)10–12 mm ± pubescent, hairs yellowish, to 2 mm;

style 13–15 mm.

calyx lobes ovate, (4–)5–6.3 × 1.5–2.6 mm, glabrous or ± scabrous proximally;

corolla violet to light blue, without nectar guides, abaxial ridges usually white, ventricose, 24–32 mm, glabrous externally, glabrous internally, tube 7–10 mm, throat gradually inflated, 8–13 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice or exserted, filaments glabrous, pollen sacs parallel, 2.4–2.8 mm, distal 1/2–2/3 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 15–18 mm, included, 0.4–0.7 mm diam., glabrous;

style 18–27 mm.

5–7 × 4–5 mm, glabrous.

7–9 × 5–6 mm.

= 16.