Flora of North America species comparison

ascending to erect, 6–20(–25) cm, retrorsely hairy proximally, glabrous or retrorsely hairy distally, not glaucous.

ascending to erect, (5–)10–32 cm, glabrous or retrorsely hairy, not glaucous.

basal and cauline, not leathery, glabrous or ± puberulent;

basal and proximal cauline 15–65 × 1–5(–7) mm, blade narrowly oblanceolate to linear, base tapered, margins entire, apex obtuse to acute;

cauline 2–5 pairs, short-petiolate or sessile, 7–33 × 1–3 mm, blade lanceolate to linear, base sessile to clasping, margins entire, apex obtuse to acute.

persistent, 4–9 pairs, distals distinctly to slightly smaller than proximals, short-petiolate or sessile, (5–)9–42 × 4–14(–18) mm, blade elliptic to obovate, base tapered, cuneate, or cordate-clasping, margins ± serrulate or serrulate-denticulate to serrate, apex rounded to obtuse or acute, glabrous, glaucous.

interrupted, cylindric, 2–11 cm, axis glandular-pubescent, sometimes also retrorsely hairy, verticillasters 2–6, cymes 1–5-flowered, 2 per node;

proximal bracts lanceolate to linear, 9–32 × 1–6 mm, margins entire;

peduncles and pedicels erect, ± glandular-pubescent.

continuous, ± secund, 2–20 cm, axis glandular-pubescent, verticillasters 4–12, cymes 1-flowered;

proximal bracts ovate to lanceolate, 4–11(–20) × 2–8(–15) mm;

peduncles and pedicels ascending, glandular-pubescent.

calyx lobes ovate to lanceolate, 2.2–4.6 × 1–2.4 mm, glandular-pubescent;

corolla blue to violet, with reddish purple guides, funnelform, 11–17 mm, glandular-pubescent externally, moderately whitish lanate internally abaxially, tube 3–4 mm, throat gradually inflated, 4–6 mm diam., 2-ridged abaxially;

stamens included, pollen sacs divergent to opposite, subexplanate to explanate, 0.6–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 7–8 mm, reaching orifice, 0.2–0.4 mm diam., tip recurved, distal 0.5–1 mm densely pilose, hairs golden yellow, to 0.8 mm;

style 9–10 mm.

calyx lobes lanceolate, 6–10 × 2–2.5 mm, glandular-pubescent;

corolla pink, red, scarlet, lavender, or purple, essentially unlined internally but abaxial ridges sometimes pink to whitish, not personate, funnelform, 22–35 mm, glabrous externally, moderately to densely white-lanate internally abaxially, tube 6–9 mm, throat 5–12 mm diam.;

stamens included or longer pair exserted, pollen sacs 0.8–1.7 mm;

staminode 8–14 mm, slightly flattened distally, 0.1–0.3 mm diam., tip straight, distal 2–8 mm pubescent to lanate, hairs white or yellowish, to 1 mm;

style 20–24 mm.

5–7 × 4–5 mm, glabrous.

(8–)10–13 × (4–)5–8 mm.