Flora of North America species comparison

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

ascending to erect, 11–48 cm, retrorsely hairy or puberulent, hairs pointed, not glaucous.

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.

basal and cauline, opposite, puberulent, hairs pointed, sometimes glabrate abaxially, not glaucous;

basal and proximal cauline (12–)25–100 × 6–15(–25) mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–4 pairs, sessile or proximals short-petiolate, 24–70 × 7–20 mm, blade elliptic or oblanceolate to lanceolate or oblong, base tapered to cordate-clasping, margins entire, apex obtuse to acute.

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.

interrupted, cylindric, 8–20 cm, axis glandular-pubescent, verticillasters 3–7, cymes 1–4-flowered, 2 per node;

proximal bracts lanceolate, 13–45 × 4–12 mm;

peduncles and pedicels erect, 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 lanceolate, 8–10 × 1.4–2.6 mm, glandular-pubescent;

corolla blue to lavender or violet, without nectar guides, ampliate, 24–30 mm, glandular-pubescent externally, glabrous internally, tube 8–10 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 1.6–1.9 mm, distal 1/3 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 13–15 mm, included, 0.4–0.5 mm diam., distal 5–8 mm densely pilose, hairs yellow, to 1.3 mm;

style 22–25 mm.

6–9 × 4.5–6 mm.

7–11 × 5–6 mm.

= 16.