Flora of North America species comparison

simple or with 1–15 ascending branches proximally, 6–24(–30) cm, glabrous proximally, sparsely retrorsely short-strigose distally.

glabrous or sparsely puberulent;

proximal cauline: blade linear to linear-lanceolate, 6–14 mm;

cauline: blade ± ovate, 10–56 mm, base sessile, margins pinnatifid, rarely bipinnatifid, lateral lobes 4–8.

0–0.3 mm, glabrous.

calyx 4–6 mm, glabrous, tube 2–4 mm, lobes triangular to narrowly lanceolate, 1.3–2 × 0.8–1 mm;

corolla creamy white, rarely pale yellow, 6–14 mm, glabrous, beak light green or white, not hooked, abaxial lobes spreading, 1.5–3 mm, throat abruptly indented, forming a fold under abaxial corolla lip, adaxial lobes projecting;

stamens exserted, pollen sac yellow, 1.3–1.5 mm, glabrous, dehiscing longitudinally;

style 5.5–6 mm, glabrous;

stigma capitate.

4.5–6.5 × 3–3.5 mm, glabrous.

20–35, ovoid, 0.6–1.3 mm.

racemes interrupted, dense distally, 1–5.5 cm;

peduncle absent;

bracts pinnatifid, ± ovate, 4–12 mm, lateral lobes 2–6.

= 22.