Flora of North America species comparison

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

decumbent to ascending, 6–20(–25) cm, retrorsely hairy or puberulent, 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, not leathery, retrorsely hairy, not glaucous;

basal and proximal cauline 8–40(–60) × 2–7 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–4 pairs, sessile, 10–38 × 1–6 mm, blade lanceolate, base tapered, apex 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.

continuous to ± interrupted, secund, (2–)4–9 cm, axis retrorsely hairy proximally, mostly glandular-pubescent distally, verticillasters (3 or)4–8, cymes 1- or 2-flowered, (1 or)2 per node;

proximal bracts linear, 3–26 × 0.5–2.5 mm;

peduncles and pedicels glandular-pubescent, peduncles also usually retrorsely hairy.

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, 3–4(–5) × 2–2.9 mm, glandular-pubescent;

corolla blue to violet or purple, with reddish purple nectar guides, ventricose, 13–20 mm, glandular-pubescent externally, glabrous internally, tube 4.5–6 mm, throat gradually inflated, not constricted at orifice, 4–6(–8) mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1–1.4 mm, dehiscing incompletely, connective not splitting, sides glabrous, sutures papillate;

staminode 8–10 mm, reaching orifice, 0.5–0.6 mm diam., tip straight, glabrous;

style 11–15 mm.

6–10 × 4–6 mm.

7–8 × 6–7 mm.

= 16.