Flora of North America species comparison

simple or with 1–20 ascending branches, 5–60(–80) cm, glabrous proximally, sparsely pubescent distally.

simple or with 1–10 ascending branches proximally, 2–37 cm, glabrous proximally, puberulent to glandular-puberulent distally.

glabrous or sparsely pubescent;

proximal cauline: blade linear, 3–30(–80) mm;

cauline: blade ± ovate or obovate, 15–90 mm, base sessile, margins pinnatifid, rarely bipinnatifid, lateral lobes 3–9.

puberulent to glandular-puberulent;

proximal cauline: blade linear, 5–25 mm;

cauline: blade ± ovate or obovate, 8–50 mm, base sessile, margins pinnatifid, rarely bipinnatifid, lateral lobes 2–11.

1–2 mm, glabrous.

0.3–0.5 mm, glabrous.

calyx 5–11 mm, glabrous or sparsely puberulent, tube 4–8 mm, lobes narrowly triangular, 1.5–5 × 1–2 mm;

corolla yellow, rarely yellow and white, or white, fading to rose pink, 12–25(–27) mm, densely short-hairy, beak ± yellow, white, or rose pink, not hooked, abaxial lobes spreading, 2–4 mm, throat abruptly indented, forming a fold under abaxial corolla lip, adaxial lobes projecting;

stamens included, pollen sac yellow, 1.7–3 mm, glabrous, dehiscing longitudinally;

style 10–20 mm, glabrous;

stigma capitate.

calyx 6–13 mm, puberulent to glandular-puberulent, tube 4–7 mm, lobes triangular to narrowly lanceolate, 1–4 × 1–1.5 mm;

corolla yellow, rarely yellow and white, or white, fading to rose pink, 10–25 mm, densely hairy, beak dark purple, not hooked, abaxial lobes spreading, 2–5 mm, throat abruptly indented, forming a fold under abaxial corolla lip, adaxial lobes projecting;

stamens included, pollen sac yellow, 1.5–2 mm, glabrous, dehiscing longitudinally;

style 12–22 mm, glabrous;

stigma capitate.

6–9(–10) × 3.5–5 mm, glabrous.

4–8 × 2.5–4.5 mm, glabrous.

15–60, ovoid, 0.6–1 mm.

30–100, ovoid, 0.5–1 mm.

racemes interrupted, dense distally, 2–30 cm;

peduncle absent;

bracts pinnatifid, ± ovate or obovate, 6–22 mm, lateral lobes 2–7.

racemes interrupted, dense distally, 1–24 cm;

peduncle absent;

bracts pinnatifid, rarely bipinnatifid, ± ovate, 2–30 mm, lateral lobes 2–8.