Flora of North America species comparison

ascending to erect, 20–50(–65) cm, glabrous or retrorsely hairy, not glaucous.

decumbent to ascending, 8–20 cm, retrorsely hairy to pilose, hairs pointed, not glaucous.

basal and cauline, basal often poorly developed, not leathery, glabrous;

basal and proximal cauline 20–75 × 2–5(–7) mm, blade narrowly elliptic to linear, base tapered, margins entire, apex obtuse to acute;

cauline 5–8 pairs, sessile or proximals long-petiolate, 15–75 × 2–8 mm, blade lanceolate to linear, base tapered, margins entire, apex acute.

basal and cauline, opposite, canescent to pilose, hairs pointed, not glaucous;

basal and proximal cauline 8–30 × 3–12 mm, blade round to spatulate or ovate, base tapered, margins entire or shallowly dentate or serrate, apex rounded to obtuse;

cauline 2–6 pairs, short-petiolate or sessile, 15–30 × 4–10 mm, blade obovate to spatulate or oblanceolate, base tapered, margins entire, apex obtuse to acute.

interrupted or continuous, cylindric, 3–25 cm, axis glandular-pubescent, verticillasters 2–6(–10), cymes 1–7-flowered, 2 per node;

proximal bracts lanceolate, 6–55 × 1–8 mm, margins entire;

peduncles and pedicels erect, glandular-pubescent.

interrupted or continuous, cylindric, 2–8(–15) cm, axis glandular-pubescent, verticillasters 2–6, cymes 1–3-flowered, 1 or 2 per node;

proximal bracts lanceolate, (4–)9–20 × (0.5–)1.5–4 mm;

peduncles and pedicels appressed, glandular-pubescent.

calyx lobes obovate to ovate or lanceolate, 1.5–3 × 0.7–1.5 mm, glandular-pubescent;

corolla violet to light blue, pink, or light purple, with or without pink or purple nectar guides, tubular to tubular-funnelform, 8–10 mm, glandular-pubescent externally, moderately yellow-pilose internally abaxially, tube 3–4 mm, throat slightly inflated, 2–3 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular to subexplanate, 0.4–0.5 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 4–6 mm, included, 0.3–0.4 mm diam., tip straight, distal 0.3–0.5 mm sparsely pilose, hairs yellow, to 0.4 mm;

style 7–8 mm.

calyx lobes ovate to lanceolate, 5–9.5 × 1–2.2 mm, glandular-pubescent;

corolla purple to violet, blue, or purple, with purple or violet nectar guides, funnelform, 25–31 mm, glandular-pubescent externally, glabrous internally, tube 8–10 mm, throat gradually inflated, 7–9 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice, filaments glabrous, pollen sacs parallel, 2.4–2.6 mm, distal 1/4–1/3 indehiscent, sides hirsute, hairs white, to 0.7 mm, sutures denticulate, hairs to 0.1 mm;

staminode 15–18 mm, included, 0.4–0.5 mm diam., glabrous;

style 19–23 mm.

3.5–5 × 2–3 mm, glabrous.

8–13 × 5–8 mm.

= 32.

= 16.