Flora of North America species comparison

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

ascending to erect, 16–50 cm, puberulent to retrorsely hairy, hairs pointed, not glaucous.

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.

cauline, opposite, puberulent, hairs pointed, or glabrous, not glaucous;

cauline 8–12 pairs, sessile, 12–70 × 0.5–1(–2) mm, blade linear, base not tapered, margins entire, apex acute.

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, cylindric, 9–22 cm, axis glandular-pubescent, verticillasters 1–5, cymes 1–3-flowered, (1 or)2 per node;

proximal bracts linear, 9–30 × 0.5–1 mm;

peduncles and pedicels spreading to ascending, 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 ovate to lanceolate, 2–4.5 × 0.7–1.7 mm, glandular-pubescent;

corolla light purple to violet or purple, without nectar guides, funnelform, 13–18 mm, glandular-pubescent externally, glabrous internally, tube 3–4 mm, throat gradually inflated, 5–7 mm diam., 2-ridged abaxially;

stamens included or longer pair reaching orifice, filaments glabrous, pollen sacs parallel, 1.2–1.6 mm, distal 1/2 indehiscent, sides pubescent, hairs white, to 0.5 mm near filament attachment, sutures denticulate, teeth to 0.2 mm;

staminode 10–12 mm, included or reaching orifice, 0.3–0.5 mm diam., glabrous;

style 11–15 mm.

7–11 × 3.5–4.5 mm.

5–7.5 × 2.5–4 mm.

= 32.

= 16.