Flora of North America species comparison

erect or ascending, usually strigulose, rarely glabrous.

obsolete (reduced to 1 to several crowns), with persistent thatch of stipules and petioles.

distally unifoliolate or reduced to phyllodia, 2–10 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, distinct and herbaceous at distal nodes, 1.5–6.5 mm;

leaflets (0 or 1–)3–13, blades linear-filiform to oblong, 3–30 mm, margins involute, apex obtuse to acute, surfaces strigose abaxially, strigose or glabrous adaxially;

terminal leaflet of compound leaves sometimes decurrent distally, not jointed to rachis.

(3–)4–10 cm;

stipules 6–10 mm, papery-membranous;

leaflets 7–15, blades obovate-cuneate to broadly oblanceolate or elliptic, (3–)5–14 mm, thick, apex obtuse or subacute, surfaces villous-tomentose.

7–35-flowered, flowers ascending;

axis 3–30 cm in fruit;

bracts 1–3 mm;

bracteoles 0–2.

(3–)5–10-flowered, flowers ascending;

axis 0.5–2.5 cm in fruit;

bracts 5–7 mm;

bracteoles 0.

strict, 6–25 cm.

ascending, (2–)4–10 cm.

0.8–3.5 mm.

3–5 mm.

(13–)14–20 mm;

calyx 4.6–8 mm, strigose, tube 4.1–6.4 × (2.6–)3–3.9 mm, lobes subulate, 0.5–2 mm;

corolla pink-purple and wing tips white, or greenish yellow or whitish;

keel (9.5–)10.5–13.5 mm.

35–41 mm;

calyx cylindric, 18–24 mm, villous, tube (12–)13.5–16 mm, lobes subulate to lanceolate, 3.5–8 mm;

corolla scarlet or crimson;

banner and keel nearly same length, recurved through 20–30°;

keel 35–40 mm.

erect, green sometimes purple-mottled becoming stramineous, straight or slightly incurved, oblong, slightly compressed laterally, bicarinate, 13–25 × 3.7–9 mm, stiffly leathery to somewhat woody, glabrous or strigose;

sessile.

ascending (humistrate), color concealed by hairs, incurved, obliquely lanceoloid-ovoid or narrowly ovoid-ellipsoid, obcompressed, 25–40 × 9–12 mm, unilocular, fleshy becoming leathery, densely villous-tomentulose, concealing surface.

14–26.

34–43.