Flora of North America species comparison

erect, 30–65 cm, retrorsely hairy.

ascending to erect, 8–20 cm, glutinous, usually covered with sand, not glaucous.

basal and cauline or, sometimes, basal absent or withering, not leathery to ± leathery, glabrous or retrorsely hairy along midvein and, sometimes, along margins;

basal and proximal cauline petiolate, 22–120(–190) × 7–40(–65) mm, blade oblanceolate to elliptic, base tapered, margins entire or serrate to dentate, apex obtuse to acute;

cauline 6–8(–10) pairs, sessile, 30–95(–115) × 7–30 mm, blade ovate to lanceolate to linear, base tapered to cordate clasping, margins entire or serrate, apex acute.

basal and cauline, ± leathery, glutinous, usually covered with sand, not glaucous;

basal and proximal cauline 35–70 × 2–5(–8) mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–8 pairs, sessile, 34–55 × 2–6 mm, blade elliptic to linear, base tapered to truncate, apex obtuse to acute.

interrupted, cylindric, 5–20 cm, axis glandular-pubescent, verticillasters (3–)4–6, cymes 2–4(–6)-flowered, 2 per node;

proximal bracts ovate to lanceolate, 14–50 × 6–17 mm;

peduncles and pedicels glandular-pubescent.

continuous, secund, 3–9 cm, axis glutinous, sometimes covered with sand, verticillasters 3–5, cymes 1–5-flowered, 2 per node;

proximal bracts lanceolate, 15–23 × 1–3 mm;

peduncles and pedicels glutinous, sometimes covered with sand.

calyx lobes ovate to lanceolate, 6.5–13 × 2.5–4.8 mm, glandular-pubescent;

corolla pink to pinkish red or reddish violet, with red or crimson nectar guides, ventricose, 22–35 mm, glandular-pubescent internally, tube 8–11 mm, throat gradually inflated, not constricted at orifice, 10–13 mm diam., rounded abaxially;

stamens: longer pair exserted, pollen sacs opposite, explanate, 0.9–1.2 mm, dehiscing completely, sutures smooth;

staminode 17–20 mm, included or reaching orifice, 0.4–0.6 mm diam., tip straight to recurved, distal 8–12 mm sparsely to moderately pilose, hairs yellow, to 1 mm;

style 18–24 mm.

calyx lobes lanceolate, 3–6 × 1.5–1.8 mm, glutinous and covered with sand;

corolla violet to blue, with faint reddish purple nectar guides, ventricose-ampliate, 15–21 mm, glabrous externally, glabrous internally, tube 4–5 mm, throat gradually inflated, not constricted at orifice, 6–7 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent, navicular, 1.5–2 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately lanate, hairs white, to 0.6 mm, sutures denticulate, teeth to 0.1 mm;

staminode 8–10 mm, included, 0.4–0.5 mm diam., tip straight to recurved, distal 1–3 mm sparsely lanate, hairs yellowish, to 0.6 mm;

style 12–14 mm.

(7–)11–14 × 5–8.5 mm.

7.5–10 × 5–6 mm.