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

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.

1–2 mm, glabrous.

0–0.3 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 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.

6–9(–10) × 3.5–5 mm, glabrous.

4.5–6.5 × 3–3.5 mm, glabrous.

15–60, ovoid, 0.6–1 mm.

20–35, ovoid, 0.6–1.3 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, 1–5.5 cm;

peduncle absent;

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

= 22.