Flora of North America species comparison

usually erect, sometimes decumbent and ascending, green or purplish, fistulose when stout, 1–7+ cm underground, strigose.

aerial tips prostrate or ascending, nodes short, strigulose-pilosulous and ashy gray.

(3–)5–25(–35) cm;

stipules 3–18 mm, membranous early becoming scarious;

leaflets (7–)13–35, blades lanceolate, lanceolate-oblong, or elliptic, (5–)6–45(–52) mm, apex obtuse, apiculate, or truncate-emarginate, surfaces strigose, sometimes glabrous adaxially.

1.5–7(–8) cm;

stipules connate-sheathing, 2–5 mm, submembranous;

leaflets mostly crowded, blades folded or involute, ovate, ovate-oblong, or elliptic, 2–10 mm, apex obtuse to acute, surfaces pubescent, sometimes glabrescent adaxially.

20–100+-flowered, flowers spreading-declined;

axis 2.5–16 cm in fruit;

bracts 1.5–10 mm;

bracteoles 0–2.

loosely (1–)3–6-flowered, (0–)1–10(–15) mm (in fruit);

bracts 1.5–5 mm;

bracteoles 0–2.

erect or incurved-ascending, (2.5–)4–22 cm.

procumbent (in fruit), 1–3(–6.5) cm.

1.2–3.5(–4) mm.

0.5–1.5 mm, (1–2 mm in fruit).

11.3–17(–17.5) mm;

calyx short-cylindric, (4.6–)5.5–10.5(–11) mm, strigose or pilosulous, tube 4–8.5 mm, lobes subulate or triangular, 1.2–4.4(–5) mm;

corolla ochroleucous, greenish white, or stramineous;

keel (9.5–)10.2–13.6 mm.

10.7–12.5 mm;

calyx 5–7 mm, strigulose, tube 3–4.2 mm, lobes subulate, 1.8–3 mm;

corolla pink-purple, lilac, or whitish, keel apex maculate, banner veined and suffused with lilac;

keel 9–10 mm.

brown then blackish, straight or incurved, cylindroid, terete, (9–)10–20 × 2.9–5.2 mm, somewhat fleshy becoming stiffly papery or leathery, usually strigose, strigulose, glabrate, or glabrous, rarely puberulent;

sessile or subsessile.

slightly incurved, 6.5–11.5 × 3–3.5 mm, thinly submembranous, strigulose.

(16–)18–26(–28).

6–9.