Flora of North America species comparison

decumbent, ascending, or erect, 5–65 cm, glabrous or retrorsely hairy, sometimes also glandular-pubescent distally, not glaucous.

ascending to erect, 10–20 cm, retrorsely hairy, hairs pointed.

basal and cauline, not leathery, glabrous;

basal and proximal cauline 5–140 × 3–20 mm, blade spatulate to oblanceolate or elliptic, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–5 pairs, short-petiolate or sessile, 10–60(–70) × 1–14 mm, blade oblong to oblanceolate or lanceolate, base tapered to clasping, margins entire, apex obtuse to acute.

not leathery, retrorsely hairy, hairs pointed;

basal and proximal cauline 5–21 × 1–4 mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse;

cauline 2–4 pairs, petiolate or sessile, 8–30 × 2–5 mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse, acute, or mucronate.

interrupted, cylindric, 1–12 cm, axis ± glandular-pubescent, verticillasters 1–6, cymes (1 or)2–6-flowered, 2 per node;

proximal bracts lanceolate, 4–35 × 1–6 mm, margins entire;

peduncles and pedicels erect, ± glandular-pubescent.

continuous, cylindric, 3–12 cm, axis retrorsely hairy, hairs pointed, verticillasters 4–12, cymes 1–4-flowered, 1 or 2 per node;

proximal bracts oblanceolate, 11–22 × 2–3 mm;

peduncles and pedicels ascending to erect, retrorsely hairy, hairs pointed.

calyx lobes oblong to lanceolate, 4–6 × 0.7–1.2 mm, glandular-pubescent;

corolla lavender to blue, violet, or purple, essentially without nectar guides, tubular-funnelform, 10–16 mm, glandular-pubescent externally, moderately yellow-pilose to yellow-lanate internally abaxially, tube 5–7 mm, throat slightly inflated, 3–5 mm diam., prominently 2-ridged abaxially;

stamens: longer pair reaching orifice or slightly exserted, pollen sacs opposite, navicular, 0.6–0.8(–1) mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 6–9 mm, included, 0.3–0.6 mm diam., tip straight to recurved, glabrous or distal 1–3 mm sparsely to moderately pilose, hairs yellow, to 0.5 mm;

style 9–12 mm.

calyx tube 1.5–2 mm, lobes lanceolate to oblong, 3.5–4.5 × 0.7–1.2 mm, herbaceous- or narrowly scarious-margined, retrorsely hairy, hairs pointed;

corolla bluish violet, lined internally abaxially with reddish violet nectar guides, tubular-funnelform, 16–20 mm, sparsely white-lanate internally abaxially, tube 6–7 mm, throat gradually inflated, 4.5–6 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs opposite, subexplanate, 0.7–0.9 mm, sutures papillate;

staminode 7–9 mm, included or reaching orifice, flattened distally, 0.2–0.3 mm diam., tip recurved, distal 4–6 mm pubescent, hairs yellowish orange, to 0.8 mm;

style 12–15 mm.

4–6 × 2.5–3.5 mm, glabrous.

not seen.