Flora of North America species comparison

prostrate to erect.

procumbent to ascending.

blades obovate to linear or oblanceolate, 5–35 × 2–15 mm, margins serrate distally.

blades obovate to oblong-cuneate, 5–10 × 2–5 mm, margins laciniate, incised-dentate, incised-pinnatifid, or serrate to deeply serrate on distal 1/2, laciniate and non-laciniate leaves often on same plant.

3–30(–50)-flowered, racemes.

1- or 2(or 3)-flowered, racemes.

5–15 mm;

calyx glabrous or pubescent, hairs eglandular or glandular, lobes equal to tube;

corolla usually purple, yellow, or variegated yellow-violet, rarely violet, green, or white, [yellow-orange, pink], 2 times length of calyx.

3–6(–8) mm;

calyx pubescent, hairs eglandular, lobes shorter than tube;

corolla pale to dark yellow, less than 2 times length of calyx.

curved or with 1.5–6 coils, falcate when curved, lenticular, ovoid, or cylindrical when coiled, 7–15 × 1.5–3 mm when falcate, 4–14 × 3–9 mm when coiled, glabrescent or pubescent with eglandular and/or glandular hairs;

face veins (when coiled) oblique from ventral suture, slightly branched, fusing towards dorsal suture.

with 3–7(–9) coils, short-cylindrical, spherical, or ovoid, 3–8(–10) × 2.5–6 mm, usually glabrous or glabrescent, rarely pubescent with eglandular hairs, very rarely with glandular hairs, margin prickly, prickles often relatively thin and flexible, base 2-rooted, 1 root arising in dorsal suture, other in submarginal vein;

faces soft, coil face with S-shaped (sigmoid) radial veins, some branched, that enter broad lateral vein near dorsal suture, veinless area occupying outer 1/5 of coil face.

2–12, yellow, brownish, greenish yellow, or violet-brown, reniform, 1–2.5 × 1–1.5 mm.

3–14, yellow to yellow-brown, reniform, 2–3 × 1–1.5 mm;

radicle 1/2–2/3 seed length.

margins entire or basally toothed.

margins deeply dentate to laciniate.

= 16, 32.

= 16.