Flora of North America species comparison

prostrate or diffuse, 1–6+ cm underground, minutely strigulose.

prostrate, when developed, 0–5 cm, mostly obscured by stipules, strigulose.

1–6.5 cm;

stipules connate-sheathing at least at proximal nodes, often becoming anthocyanic and somewhat enlarged at distal nodes, 3–6 mm, thinly herbaceous becoming papery;

leaflet blades elliptic to oblong, 1.5–8 mm, apex obtuse to retuse, surfaces strigulose, sometimes glabrous or glabrate adaxially.

1.5–5 cm;

stipules connate-sheathing or distinct, 2–7 mm, membranous;

leaflets 7–17, blades elliptic to oblanceolate, 3–9 mm, apex acute to obtuse, surfaces strigose.

1–5-flowered;

axis 1–3 cm in fruit;

bracts 1.5–4.5 mm;

bracteoles 0.

2–8-flowered, flowers ascending;

axis 0.5–2.5 cm in fruit;

bracts 2–4 mm;

bracteoles 0–2.

ascending, (2.5–)3–10 cm.

ascending, 0.5–5.2 cm.

1.8–4 mm.

0.5–1.5 mm.

12–20 mm;

calyx 6–6.7 mm, black-strigose to glabrate, tube 3–4.7 mm, lobes triangular-acuminate to linear, 1–2.5 mm;

corolla keel 11.2–13.7 mm.

12.2–15 mm;

calyx short-cylindric, 6.1–7.7(–8.4) mm, pilose, hairs black and white, tube 5.2–6.5 mm, lobes subulate, 0.9–1.7 mm;

corolla pink-purple or bicolored;

keel 9.8–12.5 mm.

pale green with purple dots, curved in 0.5–1 spiral, laterally compressed, 30–50 × 50–75 mm, papery-membranous, semitransparent, minutely strigose;

gynophore 4–10 mm.

declined, green, usually red-mottled or -spotted, becoming stramineous, lunately incurved, ovoid-ellipsoid, dorsiventrally compressed, 12–19 × 5–6 mm, subunilocular, thin becoming papery, long silky-pilose;

sessile, gynophore 0–0.5+ mm.

20.

= 22.