Flora of North America species comparison

prostrate to erect.

prostrate to ascending.

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

blades obovate, obovate-cuneate, oval, ovate, or globose, (3–)4–10(–13) × (2.5–)3–7(–10) mm, margins usually serrate, sometimes laciniate or incised, on distal 1/2–3/4.

3–30(–50)-flowered, racemes.

4–18-flowered, capitate or subumbellate, with stellate flowers, deflexed fruits.

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.

3.5–5 mm;

calyx pubescent, hairs eglandular, lobes longer than 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.

linear, slightly compressed, 7–15(–25) × 1–2 mm, pubescent or glabrous, margin prickleless;

faces with obliquely transverse, anastomosing, prominent veins.

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

4–10, yellow or yellow-brown, rhomboid-ovoid, 1–1.6 × 0.7–1.1 mm.

margins entire or basally toothed.

margins dentate to incised.

= 16, 32.

= 16.