Flora of North America species comparison

prostrate, decumbent, ascending, or erect, 2–14(–20) cm, pubescent to densely retrorsely hairy.

ascending to erect, 45–150(–200) cm, glaucous.

basal and cauline, not leathery, retrorsely hairy;

basal and proximal cauline petiolate, (5–)10–40(–55) × 4–14 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex obtuse to acute, rarely rounded;

cauline 1–3 pairs, sessile, 12–38 × 3–7 mm, blade oblanceolate, not arcuate, base tapered, margins entire, apex obtuse to acute.

glabrous, glaucous;

basal and proximal cauline 75–130 × 18–50 mm, blade ovate to elliptic, base tapered, margins entire, apex rounded to obtuse;

cauline 3–7 pairs, proximals usually short-petiolate, distal ones sessile, 24–145 × 12–70 mm, blade elliptic to ovate, base tapered to clasping, margins entire, apex obtuse to acute.

continuous, cylindric, 0.5–8(–10) cm, axis retrorsely hairy, verticillasters 1–4(–7), cymes 1- or 2(–4)-flowered, 1 or 2 per node;

proximal bracts oblanceolate to lanceolate, 12–34 × 2–8 mm;

peduncles and pedicels retrorsely hairy, sometimes sparsely glandular-pubescent.

interrupted, cylindric, 14–60(–80) cm, axis glabrous, verticillasters 7–20, cymes 2–8(–18)-flowered;

proximal bracts ovate to lanceolate, 15–33 × 4–20 mm;

peduncles and pedicels ascending to erect, glabrous or sparsely glandular-pubescent.

calyx lobes lanceolate, 4–6 × 1–1.9 mm, retrorsely hairy, sometimes sparsely glandular-pubescent;

corolla light blue to blue or violet, with, rarely without, faint blue or reddish purple nectar guides, funnelform, 14–20 mm, glandular-pubescent externally, sparsely white-lanate internally abaxially, tube 6–7 mm, throat gradually inflated, not constricted at orifice, 4–7 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 0.9–1.2 mm, dehiscing completely, sutures papillate;

staminode 7–10 mm, included or reaching orifice, 0.7–0.9 mm diam., tip recurved to coiled, distal 5–8 mm sparsely pubescent to lanate, hairs yellow or yellow-orange, to 1 mm;

style 10–12 mm.

calyx lobes elliptic to ovate, 3.5–5(–5.8) × 1.8–2.4 mm, margins entire or erose, sparsely glandular-pubescent;

corolla scarlet to orange, without nectar guides, bilaterally symmetric, bilabiate, tubular-funnelform, 20–28 mm, sparsely glandular-pubescent externally, glandular-pubescent internally, tube 4–7 mm, throat gradually inflated, 5–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs explanate, 1–1.2 mm, sutures smooth;

staminode 14–20 mm, flattened distally, 0.3–0.6 mm diam., tip straight, glabrous;

style 16–20 mm.

4–6 × 4–5 mm.

7–12 × 5–8 mm.