Flora of North America species comparison

erect or ascending, (0–)1–12+ cm underground, villous.

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

(2–)3–12 cm;

stipules distinct, subterranean ones often fully amplexicaul but distinct, 7–15 mm, foliose at distal nodes;

leaflets (5–)7–13(–15), blades elliptic, oblong or lanceolate-elliptic, 10–30(–35) mm, pinnately veined, apex obtuse to rounded, surfaces sparsely villosulous or villous abaxially, glabrous adaxially.

(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.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

7–35-flowered, flowers ascending to declined;

axis 2.5–14(–25) cm in fruit;

bracts 2–6 mm;

bracteoles 0–2.

erect, 3–9.8 cm, usually longer than subtending leaf.

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

1.5–5 mm.

1–3.5 mm.

13–19 mm;

calyx campanulate to subcylindric, 7.5–8.8 mm, villosulous, tube 6.3–8 mm, lobes broadly triangular, 0.6–0.8 mm;

corolla yellowish with whitish margins, banner sometimes purple bordered white, keel 13.2–16 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.

green becoming brown, ± straight, ovoid, inflated, 15–21 × 5.5–8 mm, papery-membranous, black-pilose, hairs to 0.5 mm;

stipe 5–7 mm, pubescent.

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.

6–10.

24–36.

= 16.