Flora of North America species comparison

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

erect or ascending, 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.

2–15 cm;

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

leaflet blades linear, linear-oblanceolate, or filiform, 5–30 mm, apex acute, subacute, or, often, mucronate, surfaces silvery-canescent, more densely so adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

9–27-flowered, flowers ascending to declined;

axis 2–11.5 cm in fruit;

bracts 0.8–2 mm;

bracteoles 0.

(3–)5–25-flowered;

axis 2–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

1–6.5 cm.

erect, 3–25 cm.

0.7–3.5 mm.

0.7–4 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.

14.5–26 mm;

calyx 7.9–13.7 mm, strigulose, tube 6.5–10 mm, lobes lanceolate-subulate, 1.5–4.3 mm;

corolla keel 12.8–18.5 mm.

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

sessile.

firmly attached to receptacle, falling while still attached to pedicel, stramineous, straight or slightly incurved, obliquely ovoid or plumply oblong, 15–31 × 5–12 mm, fleshy becoming woody, glabrous;

septum (0–)1–2.5(–4) mm wide.

21–32.

= 22.