Flora of North America species comparison

20–50 cm, puberulent or retrorsely hairy proximally, puberulent and glandular-pubescent distally.

erect, (35–)55–100 cm, glabrous, glaucous.

puberulent or retrorsely hairy, sometimes only along midveins and margins;

basal and proximal cauline 28–68 × 3–9 mm, blade oblanceolate to lanceolate or linear, base tapered, margins entire, apex obtuse to acute;

cauline 6–9 pairs, 32–95 × 4–12 mm, blade lanceolate to linear, base tapered, apex acute.

basal and cauline, or basal absent or reduced, leathery, glabrous, glaucous;

basal and proximal cauline 25–110 × (4–)10–27 mm, blade ovate to elliptic or lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 3–6 pairs, sessile, (5–)15–105 × (1–)2–30 mm, blade lanceolate, base tapered to clasping, apex acute to acuminate.

± secund, 6–28 cm, axis glandular-pubescent, verticillasters 4–11, cymes 1- or 2-flowered;

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

peduncles and pedicels glandular-pubescent.

interrupted, cylindric, 8–55 cm, axis glabrous, verticillasters 5–13, cymes 1- or 2(or 3)-flowered, (1 or)2 per node;

proximal bracts lanceolate to subulate, 4–8 × 1–3 mm;

peduncles and pedicels spreading to ascending, glabrous.

calyx lobes ovate to lanceolate, 5–8 × 2–2.8 mm, glandular-pubescent;

corolla violet to lavender to purple, lined internally abaxially with purple nectar guides, ventricose, 25–35 mm, glabrous internally, tube 7–9 mm, throat abruptly inflated, 9–10 mm diam., slightly 2-ridged abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent, 1.8–2.2 mm, sutures denticulate, teeth to 0.3 mm;

staminode 17–19 mm, included, 0.6–1 mm diam.;

style 15–20 mm.

calyx lobes ovate to lanceolate, 4–5.8 × 2.5–3.2 mm, glabrous;

corolla violet to lavender, with reddish purple nectar guides, ventricose-ampliate, 20–33 mm, glabrous externally, sparsely white-lanate internally abaxially, tube 7–9 mm, throat gradually to abruptly inflated, not constricted at orifice, 9–11 mm diam., rounded abaxially;

stamens: longer pair exserted, pollen sacs opposite, navicular, 1.7–2.3 mm, dehiscing completely, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 16–20 mm, reaching orifice or exserted, 0.5–0.8 mm diam., tip straight, distal 2–4 mm sparsely lanate, hairs yellow, to 1.5 mm;

style 17–22 mm.

11–15 × 7–9 mm.

8–10 × 3–4 mm.

= 16.