Flora of North America species comparison

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

very slender, prostrate-spreading, strigulose.

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–)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.

2–8-flowered, flowers ascending;

axis 0.5–2.5 cm in fruit;

bracts 2–4 mm;

bracteoles 0–2.

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.

ascending, 0.5–5.2 cm.

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

0.5–1.5 mm.

1.2–4 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.

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.

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.

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.

20.

= 22.