Flora of North America species comparison

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

ascending to erect, 11–48 cm, retrorsely hairy or puberulent, hairs pointed, 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, opposite, puberulent, hairs pointed, sometimes glabrate abaxially, not glaucous;

basal and proximal cauline (12–)25–100 × 6–15(–25) mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–4 pairs, sessile or proximals short-petiolate, 24–70 × 7–20 mm, blade elliptic or oblanceolate to lanceolate or oblong, base tapered to cordate-clasping, margins entire, apex obtuse to 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.

interrupted, cylindric, 8–20 cm, axis glandular-pubescent, verticillasters 3–7, cymes 1–4-flowered, 2 per node;

proximal bracts lanceolate, 13–45 × 4–12 mm;

peduncles and pedicels erect, 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, 8–10 × 1.4–2.6 mm, glandular-pubescent;

corolla blue to lavender or violet, without nectar guides, ampliate, 24–30 mm, glandular-pubescent externally, glabrous internally, tube 8–10 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 1.6–1.9 mm, distal 1/3 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 13–15 mm, included, 0.4–0.5 mm diam., distal 5–8 mm densely pilose, hairs yellow, to 1.3 mm;

style 22–25 mm.

6–8 × 4–5 mm.

7–11 × 5–6 mm.

= 16.