Flora of North America species comparison

erect, 15–45(–60) cm, glabrous, glaucous.

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

basal and cauline, opposite, hirsute, hairs pointed, not glaucous;

basal and proximal cauline 15–30(–60) × 4–10(–14) mm, blade ovate to elliptic, base tapered, margins entire, apex rounded to acute;

cauline 2 or 3 pairs, petiolate or sessile, 8–25(–45) × 1–3 mm, blade spatulate to oblanceolate or linear, base tapered, margins entire, apex rounded to acute.

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.

interrupted, cylindric, 4–24 cm, axis glandular-pubescent, verticillasters 2–4, cymes 1–4-flowered, 1 or 2 per node;

proximal bracts subulate to lanceolate or linear, 4–35 × 1–3 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

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.

calyx lobes oblong to ovate, 3–4.5(–5) × 0.9–2 mm, glandular-pubescent;

corolla lavender to violet or purple, with or without faint reddish purple nectar guides, ventricose, 25–34 mm, glandular-pubescent externally, yellow-lanate internally abaxially, tube 6–9 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs nearly parallel, 1.4–1.5(–1.7) mm, distal 1/2 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 15–19 mm, included, 0.2–0.3 mm diam., distal 4–8 mm sparsely pilose, hairs yellow, to 0.7 mm;

style 20–29 mm.

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.

6–10 × 4–6 mm.

6–10 × 5–6.5 mm.

= 16.