Flora of North America species comparison

prostrate and radiating, to 15(–20) cm, internodes often concealed by stipules, strigose or strigulose.

few or several, ascending to erect, proximalmost internodes very short, strigulose or villosulous.

(2–)4–14 cm;

stipules sometimes connate-sheathing at proximal nodes (vars. humistratus and missouriensis), (2–)3–9 mm, firm or submembranous becoming scarious or papery;

leaflets (5–)11–17(–21), blades elliptic to obovate, 3.5–13(–17) mm, apex acute, apiculate, or obtuse, surfaces strigose to strigulose.

(4–)6–17 cm;

stipules obscuring proximal internodes, 3–11 mm, papery-membranous at proximal nodes, subherbaceous at distal nodes;

leaflets (7 or)9–17, blades obovate, lanceolate, or broadly elliptic to suborbiculate, 8–20(–26) mm, apex obtuse to emarginate, surfaces strigose or sparsely so abaxially, strigose, glabrous, or glabrescent adaxially.

(3–)4–15-flowered, flowers ascending to spreading;

axis (0.5–)1–4 cm in fruit;

bracts 2.5–8 mm;

bracteoles 0–2.

7–35-flowered, flowers ascending to declined;

axis 2.5–14(–25) cm in fruit;

bracts 2–6 mm;

bracteoles 0–2.

ascending, (1.5–)3.5–11 cm.

erect, 6–16 cm, together with racemes usually longer than leaves, often sub-basal and appearing scapelike.

1–3.5 mm.

1–3.5 mm.

9.5–22(–24) mm;

calyx purple-tinged, cylindric or deeply campanulate, 5–13(–14.3) mm, strigulose, tube 4.1–10 mm, lobes subulate, (0.7–)1.4–4.5(–5.3) mm;

corolla usually pink-purple, purple, lavender, or violet-red, rarely white;

banner recurved through 45°;

keel 8.9–17.3(–18.5) mm.

12–17(–18) mm;

calyx short-cylindric, 6–7.8 mm, black-pilosulous, tube 4.5–5.2 mm, lobes subulate, 1.2–2.7 mm;

corolla ochroleucous with keel tip dull purple, banner sometimes suffused with lavender, or pink-purple and wing tips pale or white;

keel 9.5–13 mm.

usually persistent, ascending or descending, brownish becoming black, straight or slightly incurved, subsymmetrically or obliquely oblong, oblong-ellipsoid, or ellipsoid, subterete, or dorsiventrally or ± laterally compressed, (11–)14–28(–30) × (4–)5–9(–10) mm, unilocular or subunilocular, distinctly beaked, fleshy becoming stiffly leathery or subligneous, walls much less than 1 mm thick, strigulose, strigose, or glabrous.

persisting on receptacle until well after maturity, falling while still attached to pedicel, erect to ascending, straight or slightly incurved, narrowly oblong, subterete, laterally compressed when pressed, not grooved ventrally, 15–26(–30) × 4–6 mm, ± bilocular, fleshy becoming leathery, silky-pilose or villous, hairs 1+ mm;

septum 2.5–3.5(–4) mm wide;

stipe 0.5–1.5 mm.

(33–)35–55(or 56).

24–36.

= 22.