Flora of North America species comparison

rhizomelike.

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

decumbent to erect, 3–10(–15) cm, glabrous.

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, glabrous;

basal and proximal cauline (10–)20–35 × 5–17 mm, blade obovate, base tapered, apex rounded to obtuse;

cauline 1–3 pairs, sessile, 10–29 × 5–12 mm, blade ovate to elliptic, base tapered, apex rounded to mucronate.

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, cylindric, 1–6 cm, axis glabrous, verticillasters 1–5(or 6), cymes 3–5-flowered;

proximal bracts ovate, 6–14 × 3–13 mm;

peduncles and pedicels glabrous.

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, (3–)4–5.5 × 1.7–2.2 mm, margins entire or erose, narrowly to broadly scarious, glabrous;

corolla blue to violet or lavender, with reddish purple nectar guides, tubular-funnelform, 13–17(–19) mm, glabrous externally, sparsely white-villous internally abaxially, tube 4–5 mm, throat gradually inflated, 4–5 mm diam., rounded abaxially;

stamens included, pollen sacs divergent to opposite, 0.8–1.2 mm, sutures smooth or obscurely papillate;

staminode 6–8 mm, included, 0.8–1 mm diam., tip recurved, distal 4–5 mm moderately to densely pubescent, hairs golden yellow, to 1 mm;

style 7–8 mm.

6–8 × 4–5 mm, glabrous.

5–7 × 5–6 mm.

= 16.