Flora of North America species comparison

ascending to erect or sprawling, flexuous, (0–)1–8 cm underground, leafless, strigulose, hairs appressed.

clustered, decumbent to ascending or straggling, often conspicuously flexuous, diffuse, strigulose.

2–13 cm;

stipules connate-sheathing and papery at proximal nodes, distinct or obscurely connate subherbaceous or firmly papery at distal nodes, 1–5.5 mm;

leaflets 9–17, blades oblanceolate to linear, 3–20(–25) mm, apex obtuse to retuse, surfaces strigose abaxially, glabrous adaxially.

(3–)5–13 cm;

stipules 1.5–5 mm, papery at proximal nodes, subherbaceous at distal nodes;

leaflets (5 or)7–17, blades linear, linear-oblanceolate, or narrowly oblong, 3–23 mm, apex obtuse or retuse, surfaces strigulose or, sometimes, glabrescent or glabrous adaxially.

9–27-flowered, flowers ascending to declined;

axis 2–11.5 cm in fruit;

bracts 0.8–2 mm;

bracteoles 0.

(3–)7–21-flowered;

axis (1–)2.5–6.5 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

1–6.5 cm.

4–9.5 cm.

0.7–3.5 mm.

1–2.5 mm.

6.4–8.7 mm;

calyx campanulate, 3.3–5.4 mm, strigose, tube 2.3–3.3 mm, lobes broadly subulate or triangular, 0.8–2.2 mm;

corolla pink-purple;

banner recurved through 90°;

keel 6–7.2 mm, apex triangular and beaklike.

13–16.3 mm;

calyx 5.9–8 mm, strigulose, hairs white, black, and brown, tube 5.3–7 mm, not swollen or gibbous proximally, marcescent, lobes triangular, 0.5–1.3 mm;

corolla whitish, banner and wing tips tinged with lilac, keel maculate;

keel 10–12.1 mm.

spreading to declined, purple-mottled, straight, ovoid, ellipsoid, or subglobose, bladdery-inflated, 17–32 × 12–22 mm, papery, strigose;

sessile.

pendulous, brown-stramineous, ± straight to sigmoidally incurved through 0.5 spiral, lunately or falcately ellipsoid, subterete becoming laterally compressed, 20–35 × (5.5–)6.5–9 mm, stiffly leathery or subligneous, strigulose;

stipe 12–20 mm, arched downward from calyx, distally sigmoidal-incurved.

21–32.

30–36.

= 22.