Flora of North America species comparison

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

prostrate, spreading, or ascending, 6–12 cm, retrorsely hairy, hairs pointed, sometimes also appressed, white, scalelike.

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.

not leathery, glabrous or sparsely hairy, hairs appressed, white, scalelike abaxially, ± densely hairy, hairs appressed, white, scalelike adaxially;

cauline 1–5 pairs, petiolate, 6–16 × 2–4.5 mm, blade obovate to spatulate, base tapered, apex rounded to mucronate 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, 2–12 cm, axis retrorsely hairy, hairs appressed or spreading, white, scalelike, sometimes also glandular-pubescent distally, verticillasters 3–12, cymes 1–3(or 4)-flowered, 1 per node;

proximal bracts spatulate to oblanceolate, 8–17 × 1.4–4 mm;

peduncles and pedicels spreading to ascending, glandular-pubescent, hairs appressed, white, scalelike.

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 to oblong, 3–5 × 0.7–1 mm, herbaceous-margined, glandular-pubescent and retrorsely hairy, hairs appressed, white, scalelike;

corolla blue to lavender, or violet, lined internally abaxially with reddish violet nectar guides, ampliate, 12–18 mm, yellow-lanate internally abaxially, tube 5–6 mm, throat gradually inflated, 3.5–5 mm diam., 2-ridged abaxially;

stamens reaching orifice or longer pair exserted, filaments glabrous, pollen sacs opposite, navicular to subexplanate, 0.6–0.8 mm, sutures papillate;

staminode 7–8 mm, included, flattened distally, 0.2–0.3 mm diam., tips straight to recurved, distal 6–7 mm pubescent, hairs yellow or orange, to 0.7 mm;

style 11–14 mm.

6–8 × 4–5 mm.

3–5 × 3–4 mm.

= 16.