Flora of North America species comparison

prostrate to erect.

ascending or procumbent.

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

blades usually obovate, rarely oblanceolate, 5–8(–12) × 2–7 mm, margins serrate on distal 1/3.

3–30(–50)-flowered, racemes.

2–5(–8)-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.

2–4.5(–6) mm;

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

corolla 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 3–5 coils, discoid, cylindrical, or ovoid, 3–5 × 2.5–6 mm, hairs glandular and/or eglandular, margin usually prickly, sometimes tuberculate, prickles, when present, often relatively thin and flexible, base 2-rooted, 1 root arising in dorsal suture, other in submarginal vein;

faces soft, coil face with strongly curved, unbranched radial veins entering broad, veinless margin that occupies 1/3 outer radius of coil face.

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

3–10, yellow to light brown, somewhat reniform, 1.5–2.5 × 0.9–1.3 mm;

radicle 1/2 seed length.

margins entire or basally toothed.

margins entire or minutely dentate at base.

= 16, 32.

= 16.