Flora of North America species comparison

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

erect and ascending; densely strigulose.

(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.

distalmost unifoliolate, sometimes also proximalmost, 3–8 cm;

stipules usually distinct throughout, rarely shortly connate-sheathing at proximal nodes, 1.5–9.5 mm, firm, early becoming papery;

leaflets (1 or)3–7, blades elliptic to narrowly oblanceolate, 10–47 × 2–9(–13) mm, apex obtuse to retuse, surfaces strigose;

terminal leaflet decurrent, not jointed to rachis.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

7–30-flowered, flowers spreading-declined;

axis 2–11 cm in fruit;

bracts 1–2.5 mm;

bracteoles 0–2.

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

erect and incurved-ascending, 2.5–15.5 cm.

1.5–5 mm.

1.2–3 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.

(16–)20–24 mm;

calyx light brown, cylindric-gibbous, (7–)8.2–11(–12) mm, strigose, tube (5.5–)6.5–9.2 mm, lobes subulate, 1.7–2.6(–4) mm;

corolla ochroleucous, concolorous;

banner recurved through 45°;

keel 13.7–16.6 mm, apex bluntly or sharply deltate.

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.

pendulous, brown, straight, ellipsoid, dorsiventrally compressed, sometimes becoming subterete, 25–35 × 4–7.5 mm, papery, strigose;

stipe 8–12 mm.

6–10.

16–22.

= 16.