Flora of North America species comparison

erect, to 80 cm, glabrous or strigulose.

erect, to 50 cm, glabrous or pilose.

stipules to 15 mm, epunctate, glabrous;

petiole 2/3 to as long as leaflets, glabrous or sparsely hairy;

leaflets 4, blades linear to narrowly elliptic, 25 × 8 mm, ± similar throughout or distal-most smaller, base cuneate, apex acute, surfaces epunctate, glabrous, abaxial midvein strigose.

stipules 3–12 mm, punctate, glabrous or puberulent;

petiole 1/3–1/2 as long as leaflet, glabrous or pilose;

leaflets 2, blades lanceolate, 25 × 4 mm, proximal larger than distal, base cuneate, apex acute, surfaces punctate, often glabrous, sometimes pilose.

1–10-flowered, crowded or ± lax, 2–17 cm;

bracts 5–7-veined, lanceolate-ovate to ovate, 10 × 7 mm, apex acute, surfaces epunctate, glabrous;

auricles 1–2.2 mm.

2–7-flowered, much interrupted proximally becoming crowded distally, to 60 cm;

bracts 7-veined, oblong-lanceolate or broadly lanceolate, 7 × 5 mm, apex acute to acuminate, surfaces usually punctate, glabrous or pilose;

auricles 1 mm.

calyx tube 7–10-veined, 3–4 mm, ± strigose;

corolla yellow;

banner 10–14 mm, longer than wings.

calyx tube 7–10-veined, to 4 mm, usually ± strigose;

corolla orange-yellow or yellow;

banner 13–15 mm, longer than wings.

1.5–1.8 mm.

1.2–1.4 mm.

exserted beyond bracts;

segments 2–6, 2.7–3.5 × 2.5–3.3 mm, not reticulate, eglandular, glabrous;

bristles to 1 mm.

exserted beyond bracts by 3–8 segments;

segments 4–8, 2–2.4 × 1.9–2.2 mm, reticulate, eglandular, pilose to villous;

bristles 0.2–0.4 mm.

= 20.