Flora of North America species comparison

ascending to erect, 20–60 cm, glaucous, sometimes not.

ascending to erect, (14–)30–60(–90) cm, glabrous or retrorsely hairy, not glaucous.

glabrous, glaucous;

basal and proximal cauline 28–100 × 2–11 mm, blade oblanceolate to elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 3–6 pairs, sessile, (11–)30–80(–120) × 2–9 mm, blade lanceolate to linear or linear-subulate, base clasping to auriculate-clasping, margins entire, apex rounded to acute.

basal and cauline, not leathery, glabrous or retrorsely hairy, not glaucous;

basal and proximal cauline 50–130(–150) × 5–15(–25) mm, blade oblanceolate to elliptic, base tapered, margins entire, usually undulate, apex obtuse to acute;

cauline (2 or)3–5(–8) pairs, petiolate or sessile, 49–90 × 5–15 mm, blade lanceolate, base tapered, truncate, or clasping, margins undulate, apex acute to acuminate.

interrupted, cylindric, 6–26 cm, axis glabrous, verticillasters 5–9, cymes 1–4-flowered;

proximal bracts lanceolate to linear, 6–33 × 1–4 mm;

peduncles and pedicels erect, glabrous.

interrupted or continuous, cylindric to ± secund, (2–)9–20(–40) cm, axis glabrous, verticillasters (3–)5–9(–25), cymes 2–8(–10)-flowered, 2 per node;

proximal bracts lanceolate, 18–50(–80) × 2–20 mm;

peduncles and pedicels glabrous.

calyx lobes ovate to lanceolate, 2–4.5 × 1.4–2.1 mm, margins entire or erose, glabrous or ± glandular along margins;

corolla scarlet, without nectar guides, nearly radially symmetric, weakly bilabiate, salverform, 18–26 mm, glabrous externally, glabrous internally, tube 4–7 mm, 1.6–3 times as long as calyx lobes, throat slightly inflated, 3–5 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs explanate, 0.7–0.9 mm, sutures smooth;

staminode 13–14 mm, essentially terete, 0.1 mm diam., tip straight, glabrous, rarely distal 1–2 mm sparsely papillate, papillae yellow, to 0.2 mm;

style 10–19 mm.

calyx lobes ovate, 3–5 × 1.6–2.8 mm, margins broadly scarious, apex rounded to acute or mucronate, glabrous;

corolla violet to blue or purple, without nectar guides, funnelform to weakly ventricose, 18–22 mm, glabrous externally, glabrous internally, tube 6–8 mm, throat gradually inflated, not constricted at orifice, 5–8 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent to nearly opposite, navicular-sigmoid, 1.4–1.7 mm, dehiscing incompletely, proximal 1/5 indehiscent, connective not splitting, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 9–12 mm, included, 0.6–1 mm diam., tip straight to recurved, distal 4–8 mm sparsely to moderately pilose, hairs yellow, to 1 mm;

style 13–16 mm.

6–8 × 4–5 mm.

9–14 × 6–8 mm.

= 16.