Flora of North America species comparison

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

erect or ascending, usually shorter than longest peduncles, sparsely strigulose.

(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.

4–17 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 1.5–7 mm, scarious;

leaflets 5–15, blades filiform to linear or narrowly elliptic, 2–23 mm, apex acute to obtuse, surfaces strigose abaxially, glabrous adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

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

axis 2.5–16 cm in fruit;

bracts 1.5–10 mm;

bracteoles 0–2.

6–34-flowered;

axis 3–25 cm in fruit;

bracts 1.5–3.5 mm;

bracteoles 0 or 1.

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

erect, 4–25 cm, together with racemes longer than stems, much surpassing subtending leaves.

1.2–3.5(–4) mm.

0.3–2 mm.

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.

7–11 mm;

calyx campanulate, 5–7.5 mm, white-pilose, tube 3–4 mm, lobes lanceolate-subulate, 1.8–3.5 mm;

corolla marcescent, pink-purple;

banner recurved through 45°;

keel 5.7–7 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.

ascending-spreading, stramineous, slightly incurved, ovoid to ellipsoid, obcompressed, 5.5–8 × 2.3–3.4 mm, thinly fleshy becoming papery, strigulose.

(16–)18–26(–28).

4–6.