Flora of North America species comparison

ascending to erect, (8–)15–50 cm, retrorsely hairy, not glaucous.

ascending to erect, (30–)40–70(–130) cm, glaucous.

basal and cauline, basal sometimes absent, not leathery, retrorsely hairy, not glaucous;

basal and proximal cauline 16–60(–80) × 1–3(–4) mm, blade linear, base tapered, margins entire, apex obtuse to acute;

cauline 6–11 pairs, sessile, (2–)10–75 × (0.2–)0.5–3 mm, blade linear, base tapered, apex acuminate.

glabrous, glaucous;

basal and proximal cauline 45–125 × 12–45 mm, blade spatulate to oblanceolate or elliptic, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 4–6 pairs, sessile or proximals sometimes short-petiolate, (35–)50–70(–100) × 15–40(–50) mm, blade oblong to elliptic, oblanceolate, or ovate, base tapered to auriculate-clasping or cordate-clasping, margins entire, apex rounded to acute.

interrupted, secund, (2–)5–25 cm, axis glabrous or puberulent, verticillasters 3–10, cymes 1- or 2-flowered, 1 or 2 per node;

proximal bracts linear, 4–30 × 0.5–2 mm;

peduncles and pedicels glabrous or puberulent.

interrupted, cylindric, 10–72 cm, axis glabrous, verticillasters 6–17, cymes 3–8-flowered;

proximal bracts ovate to lanceolate, 8–40 × 3–20 mm;

peduncles and pedicels erect, glabrous or pedicels sparsely glandular-pubescent distally.

calyx lobes ovate, sometimes obovate or truncate, 3–4.5(–5) × 1.5–2.4 mm, glabrous or sparsely puberulent;

corolla bluish violet to violet, lavender, or purple, with reddish purple nectar guides, ventricose, 17–23 mm, glabrous externally, glabrous internally, tube 5–7 mm, throat gradually inflated, slightly constricted at orifice, (5–)7–9 mm diam., rounded abaxially;

stamens: longer pair exserted, pollen sacs opposite, navicular, 1.2–1.5 mm, dehiscing incompletely, connective not splitting, sides glabrous, sutures papillate;

staminode 12–14 mm, exserted, 0.5–0.8 mm diam., tip straight to recurved, glabrous;

style 13–17 mm.

calyx lobes ovate to lanceolate, 3.5–6 × 1.5–2.2 mm, margins erose, sparsely glandular-pubescent, especially along margins;

corolla red to pink, without nectar guides, bilaterally symmetric, bilabiate, tubular-funnelform to ventricose, 14–19 mm, glandular-pubescent externally, glandular-pubescent internally, tube 3–6 mm, throat abruptly inflated, 6–7 mm diam., rounded abaxially;

stamens included, pollen sacs explanate, 0.9–1.2 mm, sutures smooth;

staminode 8–10 mm, flattened distally, 0.6–1 mm diam., tip straight to recurved, distal 2–7 mm sparsely to densely pilose, hairs yellow, to 1.2 mm;

style 8–11 mm.

7–14 × 4–5 mm.

6–12 × 4–7 mm.

= 16.