Flora of North America species comparison

rhizomelike.

ascending to erect, 32–100 cm, glabrous, slightly glaucous.

ascending to erect, 10–27 cm, glabrous, glutinous, usually covered with sand, not glaucous.

glabrous, not glaucous;

basal and proximal cauline 40–80(–150) × 14–40(–60) mm, blade spatulate to obovate, oblanceolate, or elliptic, base tapered, margins entire, apex rounded to obtuse;

cauline 3–7 pairs, sessile, (11–)20–135 × 9–50 mm, blade spatulate to elliptic, ovate, or subcordate, base truncate to broadly cordate-clasping, apex rounded to acute or mucronate.

cauline, leathery, glabrous, sometimes glutinous;

cauline 3–5 pairs, short-petiolate or sessile, (12–)20–50(–55) × (3–)10–24 mm, blade obovate or spatulate proximally, obovate to lanceolate distally, base tapered, margins dentate, apex rounded to obtuse or acute.

secund, (3–)6–44 cm, axis glabrous, verticillasters 3–15, cymes 2–4(–8)-flowered;

proximal bracts suborbiculate, ovate, or lanceolate, (4–)16–60 × (2–)5–45 mm;

peduncles and pedicels erect, glabrous.

continuous, cylindric, (1–)2–9 cm, axis glabrous or sparsely puberulent, glutinous, verticillasters 2–8, cymes 2–6-flowered, 2 per node;

proximal bracts lanceolate, 16–58 × 3–12 mm, margins dentate;

peduncles and pedicels erect, glabrous or puberulent, glutinous.

calyx lobes ovate, 1.6–6 × 1.4–3 mm, margins entire or erose, glabrous;

corolla red to crimson, with reddish violet nectar guides, bilaterally symmetric, weakly bilabiate, tubular, 22–30 mm, densely yellow-villous internally abaxially, tube 6–8 mm, throat 6–8 mm diam., constricted at orifice, rounded abaxially, abaxial lobes spreading to reflexed, adaxial lobes projecting to erect;

stamens included, pollen sacs divergent, 1.5–1.9 mm, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 15–17 mm, included or slightly exserted, tip straight to recurved, distal 1–3 mm sparsely lanate, hairs yellow, to 1.5 mm;

style 18–28 mm, usually exserted.

calyx lobes ovate to lanceolate, 4.5–8.4 × 1.6–3 mm, glutinous;

corolla white to lavender, with reddish purple nectar guides, tubular-funnelform, 11–15(–18) mm, glabrous externally, sparsely white-pilose internally abaxially, tube 6–7 mm, throat gradually inflated, 3–5 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, navicular to subexplanate, 0.8–0.9 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 7–10 mm, included, 0.6–0.8 mm diam., tip slightly recurved, distal 0.5–2.5 mm sparsely pilose, hairs white, to 0.5 mm;

style 7–8 mm.

10–15 × 5–9 mm.

5–8 × 4–5 mm, glabrous.

= 16.