Flora of North America species comparison

simple or few-branched, eglandular, strigulose.

erect or decumbent, glabrous or pubescent (trichomes stiff, short, not spirally twisted).

0.8–3 cm;

leaflets 11–17, blades obovate to oblanceolate, (1.5–)2–5 mm, surfaces pubescent abaxially, glabrous adaxially, gland-dotted abaxially.

alternate, usually odd-pinnate, rarely unifoliolate;

stipules present, caducous or persistent, deltate, ovate, or subulate;

petiolate;

leaflets 1–25(–29)[–45], stipels absent, blades with pale sinuous lines and single gland between petiolules, margins entire or glandular-crenulate, surfaces lineolate, with pale, sinuous, ascending lines, usually glandular-punctate abaxially, usually pubescent, sometimes glabrous.

moderately densely flowered;

axis (0.5–)1–2.7 cm;

bracts 1.8–2.5 mm.

(1–)5–75-flowered, terminal or leaf-opposed, racemes;

bracts present, caducous [persistent];

bracteoles absent.

(1–)1.5–3.5 cm.

0.2–0.4 mm.

glandular basally, sometimes also apically.

nodding;

calyx 4.2–5 mm, hirsutulous, tube 1.7–2.2 mm, rib intervals each with 4 or 5 glands, lobes lanceolate-elliptic, ± unequal;

corolla bicolored;

banner pale, lilac near margin, oblong-cordate to reniform, 2.6–3.3 mm; epistemonous petals lilac-striped proximally, whitish distally;

wings obliquely ovate, 2.6–3 × 1.3–1.8 mm;

keel ovate or obovate, 3.6–4.1 × 2.4–2.7 mm;

stamens 4.5–5.2 mm;

filaments distinct to 1.6–1.9 mm;

anthers 0.5–0.8 mm.

papilionaceous;

calyx campanulate, lobes 5, ribs 10, not anastomosing distally into closed arches, intervals between ribs membranous, glandular;

corolla white, lilac, blue, blue-violet, or purple, often bicolored;

banner claw reflexed to 90°;

wings and keel epistemonous, arising from apex of stamen tube or laterally from it;

wings not adnate to keel;

keel blades usually narrowly overlapping and adherent;

stamens [5 or 9]10, monadelphous, ± equal;

anthers dorsifixed;

ovule 1.

loments, mostly tan, stipitate, compressed [plump], obovoid, obliquely obovoid, or harp-shaped [obliquely obdeltoid], indehiscent, pericarp membranous or papery, glandular, glabrous or pilosulous.

2 mm.

1, tan to purplish or greenish, somewhat compressed, reniform.

obliquely obovoid, ca. 3 mm, puberulent, with arcs of glands distally.

= 10.