Flora of North America species comparison

erect, 10–30 cm, glabrous or puberulent.

ascending to erect, 14–120 cm, sometimes glaucous.

basal and cauline, not leathery, glabrous, rarely puberulent proximally, especially along margins;

basal and proximal cauline sessile, 15–20(–40) × 0.5–1.5 mm, blade linear, base tapered to ± clasping, margins entire, apex acute;

cauline 3–7 pairs, sessile, 11–35 × 0.3–1 mm, blade linear, base tapered to ± clasping, margins entire, apex acute.

not leathery, glabrous, sometimes glaucous;

basal and proximal cauline 25–140 × 9–45 mm, blade elliptic to obovate or lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–6 pairs, sessile or proximals short-petiolate, 10–135 × 3–30 mm, blade oblong to oblanceolate or lanceolate, base tapered to truncate, margins entire, apex obtuse to acute.

continuous or interrupted, cylindric, 3–15 cm, axis glabrous or retrorsely hairy, verticillasters 3–7, cymes 1- or 2(or 3)-flowered, 1 or 2 per node;

proximal bracts linear, 10–30 × 0.3–1 mm;

peduncles and pedicels glabrous, rarely puberulent.

interrupted, cylindric to ± secund, 12–34(–90) cm, axis glabrous, verticillasters 5–15(–30), cymes (1 or)2(–4)-flowered;

proximal bracts lanceolate to subulate, 4–15 × 1–5 mm;

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

calyx lobes ovate, 3.5–5.8 × 1.3–2.2 mm, glabrous;

corolla white or pink to violet or purple, without nectar guides, tubular-funnelform, 9–18 mm, glabrous externally, moderately yellow-villous internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted, 5–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, navicular, 1–1.5 mm, dehiscing completely, sutures papillate;

staminode 7–11 mm, included or reaching orifice, 0.5–0.7 mm diam., tip straight to recurved, distal 3–5 mm pilose, hairs yellow or yellow-orange, to 1 mm;

style 9–12 mm.

calyx lobes lanceolate, 3–4.5 × 1–1.5 mm, margins entire, sparsely glandular-pubescent;

corolla red to orangish red, without nectar guides, nearly radially symmetric, weakly bilabiate, tubular-funnelform, 19–25 mm, glandular-pubescent externally, glandular-pubescent internally abaxially, tube 6–8 mm, throat gradually inflated, 5–7 mm diam., rounded abaxially;

stamens included, pollen sacs explanate, 1–1.4 mm, sutures smooth;

staminode 7–9 mm, flattened distally, 0.3–0.5 mm diam., tip straight to recurved, glabrous;

style 9–11 mm.

4–5 × 2.5–4 mm.

11–16 × 5–8 mm.

= 16.