Flora of North America species comparison

very short, tufted, branched.

erect, unbranched or branched distally, hollow.

cauline, crowded near base;

stipules well developed;

petiole 1–6 cm;

leaflets (3 or)5–9, blades 8–20 × 2–9 mm, adaxial surface glabrous.

basal and cauline, green;

stipules 5–20 mm;

basal petioles 10–25 cm, cauline 1–4 cm;

leaflets 5–10, blades 30–80(–130) × 5–8 mm, adaxial surface strigose, hairs less than 1 mm.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

5–28 cm, usually exceeding leaves;

flowers dense.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

4–17 cm;

bracts persistent, 5–10 mm.

0.3–1.5 mm.

1–3 mm.

6–8 mm;

calyx abaxial lobe entire or shallowly cleft, ± 6 mm, adaxial lobe 2-toothed, 3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot white or yellow, keel glabrous.

10–12 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire, 5–6 mm, adaxial lobe 2-toothed, 4–7 mm;

corolla violet to dark blue, banner patch orange to red, banner usually glabrous abaxially, rarely hairy, lower keel margins glabrous, adaxial margin densely ciliate.

not undulate, 1 cm, thinly pilose to coarsely hirsute.

1.5–2 cm, hairy to woolly.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2, smooth.

4–6, brown, mottled tan, 3–4 mm.