Flora of North America species comparison

erect or ascending, strigulose.

few, decumbent or prostrate to ascending, (0–)1.5–13 cm underground, hirsutulous.

mostly in sub-basal cluster, (6–)10–30 cm;

stipules connate-sheathing at proximal nodes, mostly connate at distal nodes, 3–10(–11) mm, scarious throughout;

leaflets (9–)13–25(–31), blades linear-oblong, linear-elliptic, lanceolate, or subfiliform, 3–23 mm, apex obtuse, acute, or retuse, surfaces sparsely strigulose abaxially, usually glabrous adaxially;

terminal leaflet sometimes continuous with rachis.

4.5–14 cm;

stipules 2–7 mm, stramineous or whitish-papery at proximal nodes, submembranous at distal nodes;

leaflets 15–29, blades obovate to oblong or elliptic, 3–25 mm, apex obtuse to emarginate, surfaces hirtellous abaxially, glabrous adaxially.

7–20-flowered, flowers ascending to spreading;

axis (3–)4–13(–15) cm in fruit;

bracts 2–4.5 mm;

bracteoles 2.

10–24-flowered, flowers ascending-spreading;

axis 1.2–10 cm in fruit;

bracts 3–5 mm;

bracteoles 0–2.

erect, sometimes divergent in fruit, 5–33 cm, together with racemes longer than stems.

incurved-ascending, procumbent in fruit, 4–12 mm.

1–4.5 mm.

1–2.5 mm.

15–25.5 mm;

calyx campanulate, cylindric, or subcylindric, 7–12 mm, strigulose-pilosulous, tube 4.9–9.2 mm, lobes subulate, 1.3–3(–4) mm;

corolla whitish with keel tip purple, sometimes banner and wings also purple-tipped, sometimes purple throughout;

banner recurved through 30–45°, oblanceolate or broadly rhombic-oblanceolate, 16–25.5 mm, apex emarginate;

keel 11.6–17.5 mm.

16–22 mm;

calyx cylindric, 10–15 mm, hirsutulous, tube 7–12 mm, lobes linear-subulate, 2–6.2 mm;

corolla dull pink-purple;

keel 16–17 mm.

stramineous, straight or slightly incurved, oblong-ellipsoid to narrowly oblong-ovoid, obcompressed, 12–25 × 4.3–8 mm, sub-bilocular, fleshy becoming leathery or subligneous, glabrous or strigulose;

septum to 1.4 mm wide;

sessile.

firmly attached to receptacle, falling while still attached to pedicel, declined to ascending (sometimes humistrate), brown or purple-dotted, incurved through 0.25–0.5 spiral, oblong, laterally compressed, sides convex, elliptic in cross section, dorsal suture forming a prominent ridge, 25–40 × 5–8 mm, bilocular, middle narrower or not wider than high in cross section, ± fleshy becoming papery, hirsutulous, hairs 0.3–0.5 mm;

stipe 2–3 mm.

15–30.

24–30.