Flora of North America species comparison

rhizomelike.

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

erect, (10–)30–80 cm, glabrous, 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, glabrous, not glaucous;

basal and proximal cauline 26–140 × 3–19 mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–5 pairs, sessile, 50–90 × (3–)6–9(–18) mm, blade oblanceolate to lanceolate, base clasping, apex acute.

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.

continuous to ± interrupted, secund or cylindric, 5–40 cm, axis glabrous or ± glandular-pubescent, verticillasters (4 or)5–9, cymes 1–5-flowered, 2 per node;

proximal bracts lanceolate, 15–54 × 2–15 mm;

peduncles and pedicels glabrous or glandular-pubescent, peduncles to 11 mm, pedicels 1–10 mm.

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, 3.5–8 × 1.8–3 mm, margins erose, glabrous or glandular-pubescent;

corolla blue to bluish violet, with or without reddish purple nectar guides, ventricose, 17–25(–30) mm, glabrous or glandular-pubescent externally, glabrous or ± glandular-pubescent internally abaxially, tube 5–8 mm, throat gradually inflated, slightly constricted at orifice, 6–8 mm diam., rounded abaxially;

stamens: longer pair reaching orifice or slightly exserted, pollen sacs opposite, navicular, 1.2–1.8 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid or pubescent, hairs whitish, to 0.3 mm, sutures denticulate, teeth to 0.1 mm;

staminode 12–15 mm, reaching orifice or slightly exserted, 0.4–0.6 mm diam., tip straight to recurved, distal 3–5 mm sparsely villous, hairs yellow, to 1 mm;

style 15–18 mm.

6–8 × 4–5 mm, glabrous.

8–12 × 4–6 mm.

= 16.

= 16.