Flora of North America species comparison

ascending to erect, 18–80 cm, glabrous or retrorsely hairy, hairs pointed, not glaucous.

erect, (15–)20–55(–60) cm, glabrous.

cauline, opposite, glabrous, sometimes glaucous;

cauline 7–15 pairs, short-petiolate or sessile, (20–)40–100(–120) × (7–)10–30(–38) mm, blade ovate to lanceolate, base tapered to truncate, margins subentire or serrate, apex acute.

basal and cauline, glabrous;

basal and proximal cauline 20–100 × 4–24 mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse or acute, sometimes mucronate;

cauline 2–5 pairs, sessile, (14–)23–95 × (4–)6–31 mm, blade lanceolate or ovate to trullate, base clasping to cordate-clasping, apex obtuse to acute.

interrupted, ± secund, (2–)7–40 cm, axis glabrous or retrorsely hairy, verticillasters (3–)5–14, cymes 2–7-flowered, 2 per node;

proximal bracts lanceolate, (6–)23–70(–115) × (1–)4–28(–35) mm;

peduncles and pedicels ascending to erect, glabrous or retrorsely hairy.

interrupted, cylindric, (5–)11–38 cm, axis glabrous, verticillasters (3 or)4–12, cymes 2- or 3(–5)-flowered;

proximal bracts trullate to ovate, 11–70 × 7–38 mm;

peduncles and pedicels glabrous.

calyx lobes ovate to obovate or lanceolate, 2.5–6 × 1.3–1.8 mm, glabrous except for margins sometimes ciliate;

corolla lavender to purple or violet, with reddish purple nectar guides, weakly ventricose, 24–38 mm, glabrous externally except lobe margins densely white-ciliate, glabrous internally, tube 7–9 mm, throat gradually inflated, 9–10 mm diam., rounded abaxially;

stamens: longer pair reaching orifice or exserted, filaments white-lanate distally, rarely glabrous, pollen sacs parallel, 1.6–2.1 mm, distal 1/2–2/3 indehiscent, sides hispidulous, hairs white, to 0.2 mm near point of attachment of connective, sutures denticulate, teeth to 0.2 mm;

staminode 16–19 mm, reaching orifice or barely exserted, 0.4–0.5 mm diam., distal 2–5 mm sparsely to moderately lanate, hairs white, to 2 mm;

style 18–25 mm.

calyx lobes ovate, 4.5–7 × 1.5–3.5 mm, margins entire or erose, broadly scarious, glabrous or obscurely glandular along margins distally;

corolla lavender to violet or bluish, with violet or reddish purple nectar guides, tubular-salverform, 14–23(–28) mm, glabrous externally or glandular, glabrous or sparsely white-villous internally abaxially, tube 7–9 mm, throat slightly inflated, 4–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, 1–1.3 mm, sutures papillate;

staminode 8–11 mm, reaching orifice, 0.8–1.6 mm diam., tip recurved, distal 1–3 mm villous, hairs golden yellow, to 1.5 mm;

style 11–15 mm.

6–9 × 4–5 mm.

10–15 × 8–10 mm.

= 64.

= 16.