Flora of North America species comparison

1–4, terminal from caudex, decumbent to erect.

cauline, ± evenly spaced or somewhat more widely spaced distally;

distal blades lance-elliptic to ovate-elliptic, 3–10 cm × 7–40 mm, apex acute to acuminate;

proximal blades oblanceolate to obovate, apex obtuse to acute.

± dense 1–15-flowered cymes or heads, sometimes with additional flowers at 1–3 nodes or on short branches.

calyx 10–20 mm, lobes ± erect, subulate to linear or occasionally oblanceolate, 2–8(–12) mm, margins ciliate;

corolla white to pale or occasionally medium blue or violet, tubular, loosely closed to fully but narrowly open, 25–45 mm, lobes ovate-triangular, 3–6 mm, longer than plicae, free portions of plicae divided 1/2 or more of their length into 2 unequal, ± triangular, lacerate segments, narrower segment usuallly deflexed;

anthers connate.

winged.

 = 26.