Flora of North America species comparison

ascending, erect, decumbent, or prostrate, sometimes diffuse, 2–6 cm underground, strigulose.

decumbent to incurved-ascending, strigulose to pilose.

(1–)1.5–10(–11) cm;

stipules connate-sheathing and papery at proximal nodes, connate or distinct and subherbaceous at distal nodes, 1–5 mm;

leaflets (5–)9–21, blades oblong-oblanceolate, elliptic, narrowly obovate, or linear-elliptic, 2–21 mm, apex obtuse to acute, surfaces usually strigulose, sometimes glabrescent or glabrous adaxially.

(5–)8–23 cm;

stipules (3–)6–12 mm, submembranous;

leaflets (19–)23–39(–43), blades usually lanceolate-ovate or rhombic-elliptic, sometimes oblong-obovate, (3–)5–20 mm, apex usually acute or subacute, sometimes obtuse or emarginate, surfaces strigulose to pilose abaxially, glabrescent or glabrate adaxially.

(3 or)4–16-flowered;

axis 0.5–7 cm in fruit;

bracts 1–3 mm;

bracteoles 0.

(10–)12–24-flowered, flowers nodding, secund, retrorsely imbricate;

axis (3–)5–12 cm in fruit;

bracts 3–10 mm;

bracteoles 0–2.

incurved-ascending or erect, 1–9.5(–12) cm.

incurved-ascending, (5–)6–15 cm.

0.5–2.5 mm.

1–3.5 mm.

(8.3–)9–17.2 mm;

calyx campanulate, 4.5–9.3 mm, strigulose, hairs white, sometimes also black, tube 3.5–5.9 mm, lobes triangular, 0.5–3.6 mm;

corolla ochroleucous, pinkish white, lilac, or pink-purple, wing tips often paler than banner;

banner recurved through 50–80°;

keel 7.3–13.8, apex narrowly triangular, acute or subacute, often slightly beaked.

15.7–19.2 mm;

calyx cylindric to broadly campanulate, 9.6–13 mm, strigulose, tube 6.8–9.4 mm, lobes lanceolate or triangular-lanceolate, 2.8–4.4 mm;

corolla dull pinkish lavender, greenish purple, or bright magenta-purple;

banner recurved through 45°;

keel 11.3–12.7 mm.

green, usually red- or purple-mottled, becoming stramineous, balloon-shaped, bladdery-inflated, 15–60(–75) × (8–)10–25(–35) mm, apex broad, round, beak obsolete, papery-membranous, translucent, glabrous or strigulose;

stipe 2–9 mm.

loosely pendulous (from ascending peduncles) or ascending (and humistrate), stramineous then brownish, gently incurved, obliquely oblong-ellipsoid, obcompressed, (17–)20–33 × (4–)7–11 mm, ± unilocular, fleshy becoming leathery, strigulose.

(13–)15–30(–37).

28–33.

= 22.