Flora of North America species comparison

rhizomelike.

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

ascending to erect, 15–25(–35) 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, leathery or not, glabrous, sometimes glaucous;

basal and proximal cauline 48–110 × 10–18 mm, blade oblanceolate to elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 5–8 pairs, petiolate, 30–80(–120) × 4–18 mm, blade lanceolate to linear, base tapered, 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.

interrupted or continuous, ± secund, 13–48 cm, axis glabrous, verticillasters 6–14, cymes 2–4(–8)-flowered, 2 per node;

proximal bracts lanceolate, 8–50(–100) × 2–10(–20) 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 obovate, 3–5 × 1.8–3 mm, glabrous;

corolla bluish lavender, with reddish purple nectar guides, ventricose, (17–)21–26(–30) mm, glabrous externally, sparsely yellow- or white-villous internally abaxially, tube 5–8 mm, throat gradually inflated, not constricted at orifice, 6–10 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent, sigmoid, 1.6–2.2 mm, dehiscing incompletely, proximal 1/3 indehiscent, connective not splitting, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 12–15 mm, reaching orifice, 0.3–0.5 mm diam., tip straight, distal 4–6 mm densely pilose, hairs golden yellow, to 1.5 mm;

style 17–20 mm.

6–8 × 4–5 mm, glabrous.

8–10 × 5–7 mm.

= 16.

= 16.