Flora of North America species comparison

to 50 cm, sparsely branched, eglandular or sparsely glandular, puberulent to pubescent, hairs black and/or white;

proximal 1–5 nodes usually naked and with cataphylls, light to dark brown, 3–7 mm, glabrous, margins sometimes ciliate.

stipules persistent or tardily deciduous, yellow-green to green, narrowly elliptic to linear-oblanceolate, 4–10 × 1–3 mm;

petiole 1.1–6.5 cm, ribbed, base slightly constricted, jointed to stem, different color and texture, glandular, sparsely to moderately pubescent;

rachis 0.9–2.1 cm, rarely longer than petiole;

petiolules brown, 1–3 mm, densely pubescent (more so than petiole);

leaflet blades usually lanceolate or triangular, rarely widely elliptic or widely ovate, 2–7 × 1.5–5 cm, base broadly attenuate to cordate, apex acute, surfaces sparsely faint, golden-glandular and sparsely pubescent.

with 4–15 nodes, 2 or 3 flowers per node, ovoid to ellipsoid;

rachis 0.6–4.5 cm, slightly elongated in fruit, internodes 1–3 mm (in flower) or 3–5 mm (in fruit);

bracts early to tardily deciduous, elliptic or lanceolate to oblanceolate-caudate, 3–7 × 1–3.5 mm, obscurely glandular, abaxially pubescent, adaxially glabrous.

1.5–10.5 cm.

1.5–2.5 mm.

11–14 mm;

calyx deciduous, broadly campanulate, elongated in fruit, 6–8 mm, glandular and strigose, hairs usually black, sometimes black and white, tube 4.5–5 mm, lobes pubescent inside;

corolla yellow or cream with purple blotch on apex of keel petals, banner 10–13.5 mm;

filaments 9–10 mm;

anthers ovate;

pistil 8.5–9.5 mm;

ovary and style base pubescent.

golden-red, compressed-obovate, 4–7 × 3–5 mm, not beaked, apiculate, faintly reticulate, eglandular, sparsely pubescent, hairs red-brown.

dark red-brown, 5–6.5 × 3–4 mm.