Flora of North America species comparison

prostrate to weakly ascending, often flexuous, (1–)2–10(–15) cm underground, strigulose-villosulous or hirsutulous, hairs stiff, straight, spreading or subretrorse.

prostrate, usually villous-tomentose, sometimes glabrous.

1.5–8.5 cm;

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

leaflets 9–23, blades oblong to oblanceolate or obovate, 2–16 mm, apex obtuse, emarginate, or retuse, surfaces villosulous abaxially, villosulous or glabrate adaxially.

(1–)1.5–4.5 cm;

stipules distinct, 2–5 mm, submembranous becoming scarious;

leaflets (7 or)9–15, blades flat or loosely folded, narrowly elliptic to elliptic-oblanceolate, 2–11 mm, apex obtuse to subacute, surfaces strigulose abaxially, strigulose, glabrous, or glabrate adaxially.

5–37-flowered, flowers ascending to declined;

axis 1–7 cm in fruit;

bracts 1–3 mm;

bracteoles 0 or 1.

(2–)5–13-flowered, subcapitate, flowers loosely ascending;

axis 0.2–1 cm per fruit;

bracts 0.8–2 mm;

bracteoles 0.

incurved-ascending or divaricate, 1.5–10 cm.

ascending, 0.6–1.7 cm, sometimes 2 or 3 per node.

0.5–2.5 mm.

0.7–2.5 mm.

6–11 mm;

calyx campanulate, 3.4–6.3 mm, villosulous, tube 2.3–3.6 mm, lobes subulate, 0.9–2.9 mm;

corolla ochroleucous, fading yellowish, and usually suffused with purple;

banner recurved through 45°;

keel (5.7–)6–7.7 mm, apex broadly deltate.

4.8–6.1 mm;

calyx campanulate, 3–3.9 mm, strigulose, tube 1.7–2.2 mm, lobes subulate, 1.1–1.7 mm;

corolla whitish, sometimes tinged lilac, banner veins purple;

banner recurved through 45–85°;

keel 3.4–4 mm, apex triangular, obtuse, somewhat beaklike.

spreading to declined, green or purplish, brightly red-mottled, straight, ovoid, ovoid-ellipsoid, ellipsoid, or cylindroid-ellipsoid, bladdery-inflated or turgid, subterete to dorsiventrally compressed, 12–27 × 3.5–13 mm, papery or papery-membranous, sparsely villosulous;

stipe 0.3–1 mm.

spreading or somewhat declined, stramineous or brownish, straight or somewhat incurved, ellipsoid or oblong-ellipsoid, 3-sided compressed, grooved dorsally, lateral faces flat, 4–7 × 1.5–2.5 mm, thin becoming papery, strigulose.

10–20.

4–8.