Flora of North America species comparison

ascending to erect, (15–)35–60 cm, retrorsely hairy, hairs pointed, at least proximally, not glaucous.

erect, (40–)60–120 cm, puberulent, at least proximally, slightly glaucous or not.

cauline, opposite, glabrous, glaucous;

cauline 4–8 pairs, short-petiolate or sessile, (15–)20–60 × (2–)6–13(–20) mm, blade elliptic or proximals oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute.

basal and cauline, basal often withering by anthesis, not leathery, glabrous;

basal and proximal cauline 47–110 × 10–24 mm, blade oblanceolate, base tapered, margins entire or ± serrate, apex rounded to obtuse;

cauline 3–7 pairs, sessile or proximals short-petiolate, (14–)44–155 × (2–)13–46 mm, blade lanceolate to ovate, proximals sometimes oblanceolate, base clasping or tapered, margins serrate, apex acute to acuminate.

continuous, cylindric, 5–22 cm, axis glabrous or retrorsely hairy, verticillasters 4–8(–11), cymes 1- or 2(–4)-flowered, 2 per node;

proximal bracts lanceolate to elliptic, 8–66 × 1–13 mm;

peduncles and pedicels ascending to erect, peduncles glabrous or sparsely retrorsely hairy, pedicels papillate or glandular distally.

interrupted, conic, (5–)14–20 cm, axis sparsely puberulent and glandular-pubescent, rarely glabrous, verticillasters 2–5, cymes (1–)5–15-flowered, 2 per node;

proximal bracts ovate to lanceolate, sometimes linear, 13–80 × (2–)5–32 mm, margins serrate, sometimes entire;

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

calyx lobes lanceolate, 4–6(–7) × 1.4–2.6 mm, glabrous;

corolla lavender to light violet or violet, with or without faint lavender nectar guides, ventricose-ampliate, (20–)22–25(–30) mm, glabrous externally, glabrous internally, tube 6–8 mm, throat gradually inflated, 7–9 mm diam., 2-ridged abaxially;

stamens: longer pair exserted, filaments glabrous, pollen sacs parallel, 1.5–1.9(–2.1) mm, distal 1/2–2/3 indehiscent, sides glabrous or hispidulous to lanate, hairs white, to 0.5 mm, sutures denticulate, teeth to 0.2 mm;

staminode 12–14 mm, reaching orifice or exserted, 0.6–0.8 mm diam., glabrous;

style 18–20 mm.

calyx lobes lanceolate, 5–9 × 0.8–1.9 mm, apex acuminate, sparsely glandular-pubescent;

corolla pale lavender to violet, with faint violet nectar guides, ventricose, 20–35 mm, glandular-pubescent externally, ± white-pubescent internally abaxially, tube 5–7 mm, throat abruptly inflated, 8–11 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1.2–1.4 mm, dehiscing completely, connective splitting, sides glabrous, rarely sparsely pubescent, hairs white, to 0.2 mm, sutures papillate;

staminode 11–13 mm, reaching orifice, 0.2–0.3 mm diam., tip straight to slightly recurved, distal 2–5 mm sparsely pubescent, hairs yellowish, to 1 mm;

style 14–16 mm.

7–11 × 3.5–4.5 mm.

7–8 × 4–5 mm, glabrous.

= 32.

= 96.