Flora of North America species comparison

ascending to erect, (9–)20–60 cm, glabrous or ± scabrous, especially distally.

erect, sometimes ascending, 30–80 cm, glabrous, slightly glaucous.

basal and cauline, glabrous, sometimes scabrous;

basal and proximal cauline (14–)30–95 × 4–15(–24) mm, blade oblanceolate to elliptic, base tapered, apex obtuse to acute or mucronate;

cauline (2 or)3–6(or 7) pairs, sessile, 18–60(–85) × (4–)8–28 mm, blade ovate to lanceolate, base tapered to cordate-clasping, apex acute to acuminate.

glabrous, slightly glaucous;

basal and proximal cauline 35–110 × 3–11 mm, blade oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 3–6 pairs, sessile or proximals short-petiolate, 27–85 × 1–6 mm, blade linear, base tapered, apex acute, rarely obtuse.

continuous or interrupted, cylindric, 6–25(–30) cm, axis glabrous, rarely scabrous or glutinous, verticillasters (5–)7–15, cymes (2–)4–8(–12)-flowered;

proximal bracts ovate to lanceolate, 14–60 × 9–30 mm, margins entire, apex obtuse to acuminate or caudate;

peduncles and pedicels glabrous or scabrous, sometimes also glutinous, peduncles to 4 mm.

± secund, 13–30 cm, axis glabrous, verticillasters 5–10, cymes 1- or 2(or 3)-flowered;

proximal bracts linear, 5–30 × 1–2 mm;

peduncles and pedicels ascending to erect, glabrous.

calyx lobes lanceolate, (3.2–)4.5–10 × 1.2–3.2(–3.8) mm, margins entire or erose, herbaceous or narrowly scarious, glabrous or scabrous proximally and, sometimes, along margins, sometimes also glutinous;

corolla blue to violet or purple, with reddish purple nectar guides, tubular-funnelform, 11–20 mm, glabrous externally, glabrous internally, tube 5–9 mm, throat gradually inflated, 4–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice to slightly exserted, pollen sacs opposite, navicular, 0.7–1.3(–1.5) mm, sutures papillate;

staminode 6–12 mm, reaching orifice, 0.6–1 mm diam., tip recurved, distal 1.5–3.5 mm densely pilose, hairs golden yellow, to 0.6 mm, hairs on proximal part of staminode mostly along margins;

style 8–15 mm.

calyx lobes ovate to lanceolate, 3.5–6 × 1.8–2.4 mm, margins erose, glabrous;

corolla red to scarlet or orange, rarely yellow, without nectar guides, bilaterally symmetric, strongly bilabiate, salverform, 30–40 mm, glabrous internally, tube 5–7 mm, throat 4–6 mm diam., not constricted at orifice, rounded abaxially, abaxial lobes spreading to reflexed, adaxial lobes projecting, galeate;

stamens exserted (but concealed by projecting adaxial lip), pollen sacs opposite, proximal 1/4–1/3 indehiscent, 1.6–2 mm, sides glabrous, sutures papillate;

staminode 11–14 mm, included, tip straight, glabrous;

style 20–28 mm, exserted.

7–13 × 4–7 mm.

7–10 × 4–6 mm.

= 16.