Flora of North America species comparison

erect or ascending, strigulose to pilose, cinereous or canescent.

prostrate to ascending and radiating, (0.5–)2–18(–24) cm underground, frequently exceeding aerial stem length, strigulose.

3–10(–14) cm;

stipules 2.5–10 mm, scarious;

leaflet blades linear, linear-oblanceolate, or narrowly elliptic, (2–)4–27(–45) mm, apex acute to subobtuse, surfaces strigose abaxially, glabrous adaxially.

1–5.5 cm;

stipules distinct throughout or shortly connate-sheathing at proximal nodes, 2–5 mm, subherbaceous;

leaflets closely spaced on rachis, blades obovate to elliptic or oblong, 1–12 mm, apex obtuse to retuse, surfaces gray-strigulose, sometimes glabrous adaxially.

9–47-flowered;

axis (2–)3–15(–20) cm in fruit;

bracts (2–)3–7 mm;

bracteoles 0–2.

(1 or)2–10-flowered;

axis 0.3–1 cm in fruit;

bracts 1.5–2.5 mm;

bracteoles 0.

erect, 1–4(–5.5) cm, much shorter than subtending leaves.

ascending, 0.5–4 cm.

0.3–1.2 mm.

1.2–3 mm.

13–17.2 mm;

calyx (7.2–)7.5–11 mm, strigulose to pilose, tube (5.4–)5.7–7.4 mm, lobes lanceolate-subulate, (1.5–)1.8–3.6 mm;

corolla banner recurved through 45°;

keel 10.4–12.8 mm.

9–17 mm;

calyx 4.8–10.5 mm, strigulose, tube 3.5–7.6 mm, lobes subulate, 1.2–3 mm;

corolla white or ochroleucous, or banner and wings tinged lavender, keel tip pink or purplish;

keel 7.4–13.2 mm.

brown-stramineous, gently incurved, dorsiventrally compressed or 3-sided at dehiscence, carinate by ventral suture, beak laterally compressed, 9–12 × 3.3–5 mm, papery, strigose or glabrous;

stipe 0.7–2.5 mm.

pale green and red-cheeked, 15–38 × 8–23 mm, thin becoming papery, strigose;

gynophore 1–4.5 mm.

= 22.