Flora of North America species comparison

ascending to erect, 14–40(–60) cm, glabrous.

erect, (5–)10–50 cm, glabrous or retrorsely hairy, hairs pointed.

basal and cauline, glabrous;

basal and proximal cauline 40–65(–110) × 8–20(–30) mm, blade obovate, base tapered, apex obtuse to acute, sometimes mucronate;

cauline 2–4 pairs, sessile, (9–)12–60 × 7–26 mm, blade lanceolate to ovate or elliptic, base tapered to clasping or cordate-clasping, apex obtuse to acute, sometimes mucronate.

leathery, sparsely retrorsely hairy, hairs pointed, especially along margins, or glabrous;

cauline 10–30 pairs, sessile, 4–32 × 0.5–1.2 mm, blade linear, base tapered to clasping, apex acuminate.

interrupted or ± continuous, secund, sometimes cylindric, 5–23 cm, axis glabrous, verticillasters 4–8, cymes 1–3(or 4)-flowered;

proximal bracts ovate to lanceolate, (3–)7–38 × (1–)2–18 mm;

peduncles and pedicels glabrous, peduncles to 28 mm.

interrupted, secund, (1–)3–15 cm, axis retrorsely hairy to puberulent, or glabrous, verticillasters 1–7, cymes 1–3-flowered, 1(or 2) per node;

proximal bracts linear, 3–14 × 0.3–1 mm;

peduncles and pedicels ascending to erect, glandular-pubescent, sometimes puberulent.

calyx lobes ovate to lanceolate, 5–6.7(–7.2) × 2–3(–3.7) mm, margins entire or erose, broadly scarious, glabrous;

corolla lavender to violet, blue, pinkish blue, or white, with or without reddish violet nectar guides, tubular-funnelform, 17–20(–22) mm, glabrous externally, sparsely white-villous internally abaxially or glabrous, tube 5–8 mm, throat gradually inflated, 5–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, 1.1–1.6 mm, sutures papillate;

staminode 8–9 mm, reaching orifice or slightly exserted, 0.6–1 mm diam., tip strongly recurved, distal 3–4 mm sparsely to densely villous, hairs mostly along margins, yellowish, to 1 mm;

style 10–12 mm.

calyx lobes lanceolate, 5–7 × 1.5–2 mm, scarious-margined, glandular-pubescent, hairs pointed;

corolla scarlet, throat sometimes yellow or yellow- or orange-spotted, unlined internally, salverform, 25–32 mm, yellow-lanate internally abaxially, tube 4–6 mm, throat slightly inflated, 4–5 mm diam., slightly 2-ridged abaxially;

stamens exserted (often hidden by galeate adaxial lobes), filaments glabrous, pollen sacs opposite, explanate, 0.8–1 mm, sutures smooth;

staminode 12–17 mm, included, slightly flattened distally, 0.1–0.2 mm diam., tip straight, distal 9–10 mm densely pilose, hairs yellow, to 1.3 mm;

style 21–27 mm.

9–12 × 5–7 mm.

5–9 × 3–4 mm.

3.5–5 mm.

= 16.