Flora of North America species comparison

obsolete (0–6 cm), internodes to 0.5 cm, mostly concealed by stipules, loosely strigulose.

decumbent to ascending, 3–13 cm underground, strigulose.

1.5–7 cm;

stipules distinct throughout, imbricate, broadly ovate, 2–7 mm, mostly broader than stem, submembranous becoming papery-scarious;

leaflets 9–17, blades elliptic to obovate or oblanceolate, 2–8 mm, apex obtuse, surfaces strigulose abaxially, strigulose or glabrescent adaxially.

1.5–8.5 cm;

stipules connate-sheathing and stiff-papery at proximal nodes, connate or distinct at distal nodes, 3–9 mm;

leaflet blades oblong to elliptic or oblanceolate, some narrowly so, 2–19 mm, apex acute to obtuse or mucronate, surfaces sparsely strigose or glabrous abaxially, glabrous adaxially.

3–8(–11)-flowered, flowers ascending;

axis 0.5–2.5 cm in fruit;

bracts 1.5–4 mm;

bracteoles 0.

4–22-flowered;

axis 1–7 cm in fruit;

bracts 1.5–7 mm;

bracteoles 0–2.

ascending, 1–6.5 cm.

erect or incurved-ascending, 2–14 cm, shorter or much longer than leaves.

0.7–1.8 mm.

1–4 mm.

(11.2–)13–15.5 mm;

calyx cylindro-campanulate, 5–7.4 mm, strigulose, tube 4–6.2 mm, lobes triangular-subulate, 1–1.5(–2) mm;

corolla bicolored, banner whitish or suffused or lined with lilac, wing and keel tips purple;

keel 10–12.5 mm.

18–24 mm;

calyx 9–11.5(–14) mm, strigulose, tube 6.5–8.5 mm, lobes subulate, 1.5–4(–6) mm;

corolla concolorous or keel faintly purplish;

keel 13.6–15.4 mm.

ascending (humistrate), green, usually red-mottled, becoming stramineous, incurved, obliquely ellipsoid, dorsiventrally to ± 3-sided compressed, 13–22 × 4–6 mm, unilocular, usually leathery, sparsely strigulose, hairs appressed, to 1 mm;

sessile, gynophore to 0.8 mm.

green, sometimes also purple, becoming brown, incurved to nearly straight, sulcate abaxially, 18–35 × 3–6.5 mm, papery, glabrous;

valves inflexed as complete septum 2–4 mm wide;

stipe 4–9 mm.

22–31.

= 22.