Flora of North America species comparison

erect or incurved-ascending, diffuse, glabrous or glabrate.

obscured by stipules and marcescent leaf bases.

3.5–15 cm;

stipules 2–7 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets (7 or)9–25, blades obovate, suborbiculate, obcordate to oblong, narrowly elliptic, lanceolate, or linear, 6–28 mm, apex retuse-emarginate to rounded, obtuse, acute, or truncate, sometimes apiculate, surfaces glabrous, hairs sometimes on margins or midrib.

palmately trifoliolate, 1–13 cm;

stipules sometimes ruptured in age, 6–18 mm, hyaline;

leaflet blades spatulate to elliptic, (3–)7–27(–37) mm, apex acute to obtuse, surfaces silvery-strigose.

3–24-flowered, flowers ascending;

axis 1–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

1–3-flowered, capitate;

axis very short in fruit;

bracts tridentate, 4.5–7.6 mm;

bracteoles 0(or 1).

erect-ascending, 2–15 cm.

obsolete.

1–5.5 mm.

0–1.6 mm.

14–24 mm;

calyx purple, 6.4–12.3 mm, sparsely strigose, tube 5.1–9.7 mm, lobes subulate, 1.3–2.6 mm;

corolla pink-purple, bicolored, or white to pale greenish yellow and, sometimes, modestly suffused with purple;

banner recurved through 40–45°;

keel (11.1–)11.5–19 mm, apex blunt.

16–29 mm;

calyx 9.3–18(–20) mm, loosely villous, tube (6.5–)10–14(–16) mm, lobes linear or narrowly subulate, 1.6–4 mm;

corolla usually whitish to ochroleucous, rarely purple, petals usually glabrous, banner rarely puberulent adaxially;

banner not differentiated into blade and claw;

keel 10.4–21.8 mm.

dehiscent on plant, erect to ascending, green or red-dotted becoming stramineous, straight or slightly incurved, cylindroid, ellipsoid, ovoid, or oblong-ellipsoid, inflated, 12–34 × 6–13 mm, unilocular, stiffly papery to leathery, glabrous or puberulent;

stipe 0–7 mm.

straight, ovoid-ellipsoid, 6–10 × 2.5–5 mm, fleshy becoming leathery, densely strigose-hirsutulous.

20–44.

10–17.