Flora of North America species comparison

rhizomelike.

decumbent, ascending, or weakly erect, 4–18 cm, retrorsely hairy, not glaucous.

ascending to erect, 25–80 cm, retrorsely hairy, not glaucous.

cauline, not leathery, glabrate, retrorsely hairy, or puberulent;

cauline 2–4 pairs, petiolate or sessile, 7–28 × 3–12 mm, blade spatulate to oblanceolate, base tapered to clasping, margins entire, apex rounded or obtuse to acute.

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

basal and proximal cauline (35–)50–160 × (5–)8–24 mm, blade oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 4–8 pairs, short-petiolate or sessile, 25–85(–125) × 6–15 mm, blade elliptic to lanceolate, base tapered to truncate, apex acute, rarely obtuse.

interrupted or continuous, ± secund, 1–3 cm, axis ± glandular-pubescent, verticillasters 1 or 2(or 3), cymes 1- or 2-flowered, 1 or 2 per node;

proximal bracts lanceolate, 17–23 × 4–10 mm, margins entire;

peduncles and pedicels ascending to erect, retrorsely hairy and glandular-pubescent.

interrupted or continuous, cylindric, 7–30 cm, axis retrorsely hairy proximally, mostly glandular-pubescent distally, verticillasters 3–7(–9), cymes 2–8(–10)-flowered, 2 per node;

proximal bracts lanceolate, 18–95 × 5–20 mm;

peduncles and pedicels retrorsely hairy.

calyx lobes lanceolate, 6–10 × 1.3–2 mm, glandular-pubescent;

corolla lavender or bluish lavender to lavender-purple, without nectar guides, bilabiate, not personate, tubular-funnelform, 15–20 mm, glandular-pubescent externally, densely white-lanate internally abaxially, tube 4–6 mm, throat gradually inflated, 5–6 mm diam., prominently 2-ridged abaxially;

stamens included, pollen sacs opposite, subexplanate, 0.7–0.9 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 8–9 mm, included, 0.3–0.4 mm diam., tip recurved, distal 4–5 mm moderately to densely lanate, hairs yellow, to 1 mm;

style 11–12 mm.

calyx lobes ovate to lanceolate, (4.8–)6–11 × 2.2–3.5 mm, margins erose, glabrous or sparsely glandular, sometimes also sparsely puberulent;

corolla violet to blue, without nectar guides, ventricose, 25–35 mm, glabrous externally, glabrous internally, tube 7–10 mm, throat gradually inflated, not constricted at orifice, 7–11 mm diam., 2-ridged abaxially;

stamens included, pollen sacs divergent to nearly opposite, sigmoid, 1.8–2.2 mm, dehiscing incompletely, proximal 1/5–1/4 indehiscent, connective not splitting, sides sparsely hispid, hairs white, to 0.3 mm, sutures denticulate, teeth to 0.1 mm;

staminode 14–16 mm, included, 0.7–0.8 mm diam., tip straight, glabrous;

style (11–)15–22 mm.

6–8 × 4–5 mm, glabrous.

8–11 × 5–6 mm.

= 16.