Flora of North America species comparison

prostrate to erect.

usually procumbent, sometimes ascending.

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

blades obovate to obcordate, 2–7(–12) × 2–5(–10) mm, margin serrate on distal 1/3.

3–30(–50)-flowered, racemes.

1- or 2-flowered, usually 1 ripe pod remaining on peduncle, umbels or 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.

2–4 mm;

calyx pubescent, hairs eglandular, lobes mostly equal to tube;

corolla yellow, slightly longer than 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 2.5–4(–5) coils, short-cylindrical, 2–4(–5) × 2–3 mm, usually pubescent with eglandular hairs, rarely glabrescent, 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 very strongly curving radial veins that branch slightly and enter broad lateral vein near dorsal suture.

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

yellow or brownish yellow, reniform, 1.7–2.4 × 0.9–1.3 mm;

radicle usually slightly less than 1/2 seed length.

margins entire or basally toothed.

margins dentate, incised, or lacerate.

= 16, 32.

= 14.