Flora of North America species comparison

erect or ascending, usually flexuous and abruptly angled distal to each node, hirsute or hirsutulous.

erect or ascending, with 5–10 well-developed internodes, glabrous or glabrate.

3–10(–11) cm;

stipules lanceolate-attenuate, (1.5–)2.5–8(–9) mm, herbaceous, sometimes papery at proximal nodes;

leaflet blades obovate to elliptic, (3–)5–19 mm, apex acute to obtuse or retuse, surfaces pubescent abaxially, sometimes glabrous adaxially.

(4.5–)7–17 cm;

stipules 0.5–2.5 mm, papery-membranous at proximal nodes, herbaceous and membranous-margined at distal nodes;

leaflet blades narrowly oblong, lanceolate-elliptic, narrowly oval, or sublinear, (3–)6–26 mm, apex retuse to obtuse, surfaces sparsely strigulose-pilosulous or, sometimes, glabrous adaxially or ciliate.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

(12–)15–40-flowered;

axis 5–15(–18) cm in fruit;

bracts 1–3 mm;

bracteoles 0.

erect, 1.5–5.5 cm.

erect or incurved-ascending, 6–15 cm, together with racemes shorter than stems.

0.5–2.3 mm.

0.6–3 mm.

12–15.3 mm;

calyx 9.5–13 mm, hirsute to hirsutulous, tube 7–8.6 mm, lobes subulate to linear-subulate, 2.5–5.5 mm;

corolla bicolored, keel tip maculate.

(13.5–)14.4–18.8 mm;

calyx (5.7–)6–8.3 mm, strigulose, tube (4.7–)5–6.3 mm, lobes triangular to subulate, 1–2.3 mm;

corolla banner recurved through 40°;

keel 12.5–15 mm.

stramineous, incurved, (20–)25–40 × (4–)5–7(–8) mm, thin becoming papery, glabrous.

brownish stramineous, strongly incurved, 23–31 × 4.5–6 mm, fleshy becoming stiffly leathery or subligneous, glabrous;

septum 0.8–1 mm wide.

= 24.