Flora of North America species comparison

herbaceous, rhizomelike.

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

ascending, 4–9 cm, puberulent to glandular-pubescent, sometimes glabrate proximally, 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.

cauline, leathery, glabrous, glaucous;

cauline 1 or 2, sessile or short-petiolate, 7–28(–32) × 3–12 mm, blade obovate to oblanceolate or elliptic, base tapered, with a white band 0.2 mm wide, apex rounded to obtuse or acute.

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.

continuous, ± secund, 1–7 cm, axis puberulent to glandular-pubescent, verticillasters 2–6, cymes 1- or 2(or 3)-flowered, 2 per node;

proximal bracts obovate to oblanceolate, 14–32 × 8–14 mm;

peduncles and pedicels puberulent to glandular-pubescent.

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 lanceolate, 5.5–7 × 1.5–2.2 mm, glabrous;

corolla white to lavender, without nectar guides, funnelform to weakly ventricose, (14–)17–20 mm, glabrous externally, glabrous internally, tube 6–7 mm, throat gradually inflated, not constricted at orifice, 6–8 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs divergent, navicular, 0.9–1.4 mm, dehiscing incompletely, proximal 1/5–1/4 indehiscent, connective not splitting, sides sparsely hispid, hairs white, to 0.4 mm, sutures denticulate, teeth to 0.1 mm;

staminode 9–10 mm, included or slightly exserted, 0.5–0.6 mm diam., tip straight, 7–9 mm sparsely pilose, hairs yellow, to 1 mm;

style 9–11 mm.

6–8 × 4–5 mm.

3.5–7.5 × 2.5–5 mm.

= 16.