Flora of North America species comparison

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

decumbent proximally, erect distally, 2–10 cm underground, often fistulose, sparsely 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.

5–22 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, 3–9 mm;

leaflets 13–21, blades ovate to obovate, lanceolate, or elliptic, 4–24 mm, apex obtuse to retuse, surfaces strigose along veins abaxially, glabrous adaxially.

9–27-flowered, flowers ascending to declined;

axis 2–11.5 cm in fruit;

bracts 0.8–2 mm;

bracteoles 0.

(15–)20–40-flowered;

axis (4–)10–16 cm in fruit;

bracts 1.5–4 mm;

bracteoles 0–2.

1–6.5 cm.

(4–)9–23 cm.

0.7–3.5 mm.

0.7–3.5 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.

(11–)14–18 mm;

calyx 5–6 mm, strigose, tube 4–5 mm, lobes triangular to subulate, 0.5–0.9(–1.2) mm;

corolla ochroleucous;

banner recurved through 25°.

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

sessile.

erect, ovoid to ellipsoid, obcompressed, inflated (turgid), 12–18 × 8–10(–12) mm, papery, glabrous;

septum to 0.2 mm wide;

stipe slender, 7–15 mm.

21–32.

= 22.