Flora of North America species comparison

erect or ascending, sparsely strigulose.

diffuse or ascending, (0–)1–4 cm underground, gray-strigulose.

(3–)4–12 cm;

stipules connate and scarious-papery at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets (17–)21–29, blades flat or loosely folded, oblong-oblanceolate or elliptic, 3–13 mm, apex obtuse to subacute, surfaces sparsely strigulose abaxially, glabrate or glabrous adaxially.

sparse, 2.5–9 cm;

stipules distinct throughout, 1.5–4.5 mm, papery-membranous at proximal nodes, herbaceous at distal nodes;

leaflets 9–15, blades linear-lanceolate or -oblanceolate, 5–20(–27) mm, apex rounded to retuse, surfaces strigose;

terminal leaflet usually longer than adjacent pair.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

3–12-flowered, flowers ascending-spreading;

axis 1–6 cm in fruit;

bracts 1–1.5 mm;

bracteoles 0–2.

(2–)4–11 cm.

incurved-ascending, 3–9 cm.

0.6–1.5 mm.

1–3 mm.

5.8–8 mm;

calyx marcescent, 3.4–4.3 mm, strigulose, hairs black and/or white, tube 2.1–2.7 mm, lobes subulate, 1–2 mm;

corolla whitish or, sometimes, greenish ochroleucous, immaculate;

banner abruptly incurved through 90°;

keel 4.2–5.6 mm.

11.5–12 mm;

calyx campanulate, 5.5–6.8 mm, strigose, tube 3.5–4.5 mm, lobes subulate or triangular, 2–2.7 mm;

corolla ochroleucous, often tinged or lined with purple;

banner recurved through 90°;

keel 9.2–10.4 mm, apex slightly beaked.

stramineous, straight or slightly incurved or decurved, linear-oblong or linear-oblanceolate, 3-sided compressed, 15–30 × (2.5–)3–4 mm, bilocular, papery, glabrous;

valves inflexed as complete septum 1.4–1.9 mm wide;

stipe 1.5–2.5 mm.

spreading or declined, stramineous or brownish with purple spots, straight, broadly and subsymmetrically ellipsoid, ovoid, or obovoid-ellipsoid, terete or somewhat dorsiventrally compressed, bladdery-inflated, 25–40 × 12–20 mm, papery, strigose;

stipe 0.7–1.5 mm.

12–16.

26–33.