Flora of North America species comparison

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

very slender, prostrate-spreading, 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.

(1–)2–11.5(–15) cm;

stipules connate-sheathing and papery at proximal nodes, connate or distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflet blades linear-filiform to narrowly oblong, involute or conduplicate, 5–27 mm, apex acute to obtuse, surfaces strigose abaxially, glabrous adaxially.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

of subradical inflorescences 1(or 2)-flowered, others 2–5(–7)-flowered;

axis filiform, 0.5–6(–8) cm in fruit;

bracts 1–2 mm;

bracteoles 2.

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

pendulous or ascending, humistrate in fruit, 2.5–14(–17) cm (early subradical, shorter than leaves, later much surpassing leaves).

1.5–5 mm.

1.2–4 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.

4–6(–7) mm;

calyx 2.7–4 mm, black-strigose, tube 1.8–2.5 mm, lobes subulate, 0.9–2 mm;

corolla keel 3.5–4.5 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.

greenish or purple-dotted becoming brownish stramineous, 10–18 × 3.5–5 mm, thin becoming papery, strigose;

septum 1.2–2 mm wide;

stipe 0–1 mm.

6–10.

= 16.

= 22.