Flora of North America species comparison

ascending or erect, rarely decumbent, (8–)16–50(–60) cm, glabrous, not glaucous.

ascending to erect, 5–35 cm, puberulent.

basal and cauline, or basal not persisting, ± leathery or not, glabrous, not glaucous;

basal and proximal cauline (18–)35–180 × (3–)6–15(–24) mm, blade oblanceolate to oblong or linear, base tapered, margins entire, apex obtuse to acute;

cauline 3–5(or 6) pairs, sessile or proximals sometimes short-petiolate, 34–115 × 2–14 mm, blade oblanceolate to oblong or linear, base tapered, apex obtuse to acute.

basal and cauline, ± leathery, ± retrorsely hairy, sometimes glabrate abaxially;

basal and proximal cauline petiolate, 15–55 × 6–25 mm, blade elliptic to broadly ovate, base tapered, rarely truncate, margins entire or remotely and obscurely serrate, apex obtuse to acute;

cauline 2 or 3 pairs, sessile, 25–75 × 10–21 mm, blade lanceolate to oblanceolate, rarely ovate, base truncate to subcordate-clasping, margins entire or obscurely dentate, apex obtuse to acute.

interrupted or continuous, secund, (1–)6–18(–25) cm, axis glabrous or sparsely glandular-pubescent, verticillasters (2 or)3–7(–9), cymes (1 or)2–5-flowered, 2 per node;

proximal bracts lanceolate to linear, 25–70(–95) × (1–)3–12(–20) mm;

peduncles and pedicels glabrous or glandular-pubescent.

continuous or interrupted, cylindric, 6–18 cm, axis glandular-pubescent, verticillasters 2–8, cymes (1–)3–7-flowered, 2 per node;

proximal bracts lanceolate to ovate, 13–38 × 9–20 mm;

peduncles and pedicels glandular-pubescent.

calyx lobes ovate to lanceolate, (4–)4.8–11 × 1.3–3.2(–3.7) mm, glabrous or glandular-pubescent;

corolla blue to lavender, with reddish purple nectar guides, ventricose, 18–33 mm, sparsely to moderately glandular-pubescent externally, glabrous, rarely sparsely white-villous, internally abaxially, tube 6–11 mm, throat gradually inflated, slightly constricted at orifice, 6–11 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent to opposite, navicular to navicular-sigmoid, (1.3–)1.5–2.4 mm, dehiscing incompletely, proximal 1/5 indehiscent, connective not splitting, sides moderately pubescent, hairs white, to 0.8 mm, sutures denticulate, teeth to 0.1 mm;

staminode 11–19 mm, reaching orifice, 0.3–0.8 mm diam., tip straight to recurved, distal 3–7 mm sparsely to moderately villous, hairs yellow, to 0.8 mm;

style 12–22 mm.

calyx lobes lanceolate, 5–7.5 × 0.9–1.8 mm, glandular-pubescent;

corolla pink to rose red or rose purple, with reddish nectar guides, tubular-funnelform, 12–17 mm, sparsely white-lanate internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted at orifice, 2.5–4 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, subexplanate to explanate, 0.6–0.7 mm, dehiscing completely, sutures smooth;

staminode 7–9 mm, included, 0.2–0.3 mm diam., tip straight to recurved, distal 5–6 mm densely pilose, hairs golden yellow, to 0.8 mm;

style 4–6 mm.

6–10 × 5–6.5 mm.

6–9 × 4–5.5 mm.