Flora of North America species comparison

erect or ascending, sparsely strigulose.

several, erect or ascending, proximalmost internodes very short, hirsute-villosulous.

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.

4–15 cm;

stipules obscuring proximal internodes, 7–17 mm, whitish-papery at proximal nodes, thinly herbaceous at distal nodes;

leaflets (7–)11–19(or 21), blades obovate, obovate-cuneate, or elliptic, 5–20 mm, apex obtuse, retuse, or subacute, surfaces hirsute-villosulous, sometimes glabrescent adaxially.

(3–)5–25-flowered;

axis 2–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

9–35-flowered, flowers declined;

axis 2–10(–15) cm in fruit;

bracts 4–9 mm;

bracteoles 2.

erect, 3–25 cm.

erect or incurved-ascending, sometimes reclined in fruit, 4–11 cm.

0.7–4 mm.

0.7–3 mm.

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.

12–15 mm;

calyx cylindric, 8.6–13(–14) mm, hirtellous, tube 7–9 mm, lobes subulate, 1.6–4(–5) mm;

corolla reddish purple;

keel 12.3–14.5(–16) mm.

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.

reflexed, green and suffused or dotted red, becoming stramineous, shallowly to deeply incurved, narrowly oblong or oblong-ellipsoid, 3-sided compressed, grooved dorsally, 18–38 × 4.5–6 mm, bilocular, fleshy becoming stiffly papery, shaggy-hirsute, hairs lustrous, spreading, 1–3 mm;

stipe 1–3 mm.

16–24.