Flora of North America species comparison

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

erect to ascending, silky-pilose.

(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.

1.5–5.5(–7.5) cm;

stipules 3–6 mm, herbaceous becoming papery;

leaflet blades usually broadly to narrowly elliptic or oblanceolate, rarely obovate, 4–17(–20) mm, apex acute to obtuse, surfaces pilose.

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

axis 2.5–16 cm in fruit;

bracts 1.5–10 mm;

bracteoles 0–2.

3–7-flowered;

axis to 0.4 cm in fruit;

bracts 1.5–5.5 mm;

bracteoles 0.

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

erect and ascending, 0.7–7 cm.

1.2–3.5(–4) mm.

0.6–1 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.

5.2–6.2 mm;

calyx 5.2–6.2 mm, pilose, tube 2–2.6 mm, lobes linear-lanceolate, 3.2–3.8 mm;

corolla keel 4.7–5.5 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.

brown or blackish, 7–13 × 2.5–3.5 mm, scarcely fleshy becoming stiffly papery, pilose-hirsute.

(16–)18–26(–28).

= 22.