Flora of North America species comparison

ascending to erect, 8–20(–35) cm, retrorsely hairy.

20–90 cm, retrorsely hairy, sometimes glabrescent.

basal and cauline, not leathery, retrorsely hairy, sometimes glabrate;

basal and proximal cauline petiolate, 35–95 × 3–18 mm, blade oblanceolate to lanceolate or linear, base tapered, margins entire or obscurely dentate, rarely prominently dentate distally, apex rounded to obtuse or acute;

cauline (1 or)2–5 pairs, short-petiolate or sessile, 33–78 × 4–10 mm, blade elliptic to oblanceolate, lanceolate or linear, base tapered to clasping, margins entire or dentate, apex obtuse to acute.

glabrous or retrorsely hairy;

basal and proximal cauline 16–80 × 3–10 mm, blade oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 6–15(–20) pairs, 45–150 × 1–6 mm, blade linear, base tapered, apex acute to acuminate.

continuous or ± interrupted, cylindric, 4–11(–18) cm, axis glandular-pubescent, verticillasters 3–5, cymes (1 or)2–6-flowered, 2 per node;

proximal bracts lanceolate to linear, 16–38 × 2–8 mm;

peduncles and pedicels glandular-pubescent.

cylindric to ± secund, 10–35 cm, axis glabrous, verticillasters (2–)5–8, cymes (1 or)2–4(or 5)-flowered;

proximal bracts linear, 8–30(–80) × 0.5–2 mm;

peduncles and pedicels glabrous or pedicels rarely glandular-pubescent.

calyx lobes lanceolate, 4.5–7.5 × 1.2–2 mm, glandular-pubescent;

corolla dark blue to violet or purple, with reddish violet nectar guides, ampliate, 10–15(–18) mm, yellowish or whitish villous internally abaxially, tube 5–6 mm, throat abruptly inflated, ± constricted at orifice, 3.5–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, explanate, 0.6–1 mm, dehiscing completely, sutures smooth;

staminode 7–8 mm, reaching orifice or exserted, 0.3–0.4 mm diam., tip straight to recurved, distal 5–6 mm densely pubescent, hairs orangish yellow, to 1.5 mm, and medial hairs shorter, stiffer, and retrorse;

style 9–11 mm.

calyx lobes elliptic to ovate, 4.2–7(–8.5) × 2–2.6(–3.5) mm, glabrous, rarely glandular-pubescent;

corolla violet to blue, lavender, or purple, lined internally abaxially with reddish purple nectar guides, ventricose, 23–37 mm, glabrous internally, tube 7–10 mm, throat abruptly inflated, 9–10 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs parallel to divergent, 1.6–1.8 mm, sutures denticulate, teeth to 0.2 mm;

staminode 20–23 mm, exserted, 1.8–2.6 mm diam.;

style 20–24 mm.

6–9 × 4.5–6 mm.

9–15 × 6–9 mm.

= 16.