Flora of North America species comparison

ascending to erect, 40–90 cm, glabrous, glaucous.

ascending to erect, 30–70 cm, glaucous.

cauline, opposite, glabrous, glaucous;

cauline 6–14 pairs, sessile, 30–85(–102) × 3–13 mm, blade elliptic, base tapered, margins entire, apex acute.

basal and proximal cauline 15–90 × 8–35 mm, blade ovate, base truncate to tapered, margins entire or coarsely dentate, apex acute;

cauline 4–7 pairs, short-petiolate or sessile, 10–70 × 8–32 mm, blade cordate to triangular-lanceolate, base tapered or truncate on proximal leaves to connate-perfoliate on distal leaves, margins coarsely dentate, sometimes entire, apex acute.

interrupted, cylindric, 6–30 cm, axis glabrous, verticillasters (5–)8–14, cymes 1(or 2)-flowered, 2 per node;

proximal bracts narrowly elliptic to linear, 8–45 × 1–8 mm;

peduncles and pedicels ascending to erect, glabrous.

interrupted, secund, 10–40(–65) cm, axis glabrous or glandular-pubescent, verticillasters 6–12(–22), cymes 2–8-flowered;

proximal bracts depressed-ovate to ovate or triangular, 6–45 × 11–26 mm;

peduncles and pedicels spreading to ascending or erect, glabrous or glandular-pubescent.

calyx lobes obovate to ovate or elliptic, 1.8–3.2 × 1.5–2.2 mm, glabrous or minutely ciliolate distally;

corolla light lavender to violet or purple, with violet nectar guides, weakly ventricose, 22–26(–28) mm, glabrous externally, glabrous internally, tube 7–9 mm, throat gradually inflated, 7–9 mm diam., 2-ridged abaxially;

stamens included or longer pair exserted, filaments glabrous, pollen sacs parallel to slightly divergent, 1.5–2 mm, distal 2/3 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 15–16 mm, included, 0.5–0.6 mm diam., glabrous;

style 16–20 mm.

calyx lobes ovate, 3.2–6 × 1.6–4 mm, glabrous or glandular-pubescent;

corolla red to reddish purple, with or without reddish or reddish purple nectar guides, bilabiate, tubular-funnelform to slightly ventricose, 17–24 mm, glandular-pubescent externally, glabrous internally or glandular-pubescent, sometimes also pilose abaxially, tube 6–9 mm, length 1.8–2 times calyx lobes, throat gradually inflated, slightly constricted or not at orifice, 5–8 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, filaments glabrous, pollen sacs navicular or explanate, 1.2–1.7 mm, sutures smooth or denticulate, teeth to 0.1 mm;

staminode 6–11 mm, included, 0.3–0.5 mm diam., tip straight to recurved, glabrous or distal 1–6 mm pilose, hairs yellow, to 0.8 mm, proximal 1–2 mm sometimes glandular-puberulent;

style 11–14 mm, glabrous.

7–10 × 4.5–5.5 mm.

6–9 × 5–7 mm, glabrous.

= 16.