Flora of North America species comparison

1–5, terminal from caudex, erect or nearly so.

1(–3), terminal from caudex, decumbent to erect.

cauline, ± evenly spaced;

blade widely ovate to elliptic, 1.5–4 cm × 8–22 mm, apex obtuse.

cauline, gradually more distantly spaced distally;

blade linear to narrowly oblanceolate, 2–10 cm × 0.5–5 mm, apex obtuse (proximal leaves) to acute.

solitary flowers or occasionally a terminal pair.

solitary flowers, occasionally also terminating 1 or 2 branches, not subtended by bracts.

calyx 8–12 mm, tube cleft to base or nearly so into 2 spathaceous segments, lobes elliptic to ovate-lanceolate, 0.5–5 mm, margins not ciliate;

corolla bright blue, campanulate, open, 30–38 mm, lobes widely ovate-triangular, 6–11 mm, free portions of plicae spreading, low-triangular, less than 1 mm, notched at apex, otherwise entire;

anthers distinct.

calyx 17–40(–53) mm, lobes linear, 10–25(–36) mm, margins not ciliate;

corolla deep blue with greenish yellow dots adaxially on lobes or occasionally rose-violet or white, funnelform, open, 30–65 mm, lobes spreading, widely ovate, 10–20 mm, free portions of plicae shallowly to deeply divided into 2 subequal, lacerate, attenuate segments;

anthers distinct.

not winged.

winged.

 = 26.