Flora of North America species comparison

erect or ascending, usually strigulose, rarely glabrous.

erect, glabrous or sparsely villous.

distally unifoliolate or reduced to phyllodia, 2–10 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, distinct and herbaceous at distal nodes, 1.5–6.5 mm;

leaflets (0 or 1–)3–13, blades linear-filiform to oblong, 3–30 mm, margins involute, apex obtuse to acute, surfaces strigose abaxially, strigose or glabrous adaxially;

terminal leaflet of compound leaves sometimes decurrent distally, not jointed to rachis.

(3.5–)5–12(–16) cm;

stipules 4–15 mm, submembranous;

leaflets (13–)19–27(–37), blades ovate, lanceolate-oblong, or oblong-obovate, (3–)5–22 mm, midrib prominent, pubescent abaxially, apex truncate and apiculate, retuse, obtuse, or subacute, surfaces glabrous or sparsely villous abaxially, glabrous adaxially.

7–35-flowered, flowers ascending;

axis 3–30 cm in fruit;

bracts 1–3 mm;

bracteoles 0–2.

(10–)15–40-flowered;

axis (1–)2–4.5 cm in fruit;

bracts 2–6 mm;

bracteoles 0–2.

strict, 6–25 cm.

erect, 5–13 cm.

0.8–3.5 mm.

0.6–1.8 mm.

(13–)14–20 mm;

calyx 4.6–8 mm, strigose, tube 4.1–6.4 × (2.6–)3–3.9 mm, lobes subulate, 0.5–2 mm;

corolla pink-purple and wing tips white, or greenish yellow or whitish;

keel (9.5–)10.5–13.5 mm.

9.1–11 mm;

calyx 6.6–9 mm, sparsely villous-villosulous, tube 3.2–4.3 × 2.4–3 mm, lobes linear to lanceolate-acuminate, 3.3–4.9 mm;

corolla white, immaculate;

banner recurved through 45°;

keel 7–7.4 mm.

erect, green sometimes purple-mottled becoming stramineous, straight or slightly incurved, oblong, slightly compressed laterally, bicarinate, 13–25 × 3.7–9 mm, stiffly leathery to somewhat woody, glabrous or strigose;

sessile.

declined, stramineous or brown, slightly incurved, obliquely lanceoloid, 3-sided compressed, grooved dorsally, 11–15 × 3–3.4 mm, papery, villosulous, hairs 1+ mm;

septum 1.5–2.2 mm wide;

stipe 0.3–0.4 mm.

14–26.

8 or 9.